Hello,
May I know why the frame pops up double when I call it?
Thank You!

Login.java (line 63);

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileReader;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;

public class Login{

    JFrame frame = new JFrame();
    JButton loginButton = new JButton("Login");
    JButton resetButton = new JButton("Reset");
    JButton registerAccount = new JButton("Sign Up");
    JTextField userIDField = new JTextField();
    JTextField userPasswordField = new JTextField();
    JLabel userIDLabel = new JLabel("Customer ID:");
    JLabel userPasswordLabel = new JLabel("Password:");
    JLabel messageLabel = new JLabel();
    JLabel title = new JLabel("Platinum Screen Cinema");
    JLabel title2 = new JLabel("Customer Login");

    Login(){
        title.setFont(new Font("Arial", Font.PLAIN, 30));
        title.setBounds(75, 50, 350, 30);

        title2.setFont(new Font("Arial", Font.PLAIN, 30));
        title2.setBounds(140, 10, 300, 30);

        userIDLabel.setBounds(50, 100, 75, 25);
        userPasswordLabel.setBounds(50, 150, 75, 25);

        messageLabel.setBounds(125,250,250,35);
        messageLabel.setFont(new Font(null,Font.ITALIC,25));

        userIDField.setBounds(125, 100, 300, 25);
        userPasswordField.setBounds(125, 150, 300, 25);

        loginButton.setBounds(125, 200, 100, 25);
        loginButton.setFocusable(false);
        loginButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent evt) {
                 try {
                        String lokasi = "customer.txt";
                        String username = userIDField.getText();
                        String password = userPasswordField.getText();

                        FileReader fr = new FileReader(lokasi);
                        BufferedReader br = new BufferedReader(fr);
                        String line;
                        String user, pass;
                        boolean isLoginSuccess = false;
                        while ((line = br.readLine()) != null) {
                            String[] splitString = line.split("\\s+");
                            user = splitString.length >1? splitString[0] : " ";
                            pass = splitString.length >1? splitString[1] : " ";
                            if (user.equals(username) && pass.equals(password)) {
                                isLoginSuccess = true;
                                            frame.dispose();
                                            new Booking().setVisible(true);
                        }
                            }
                        if (!isLoginSuccess) {
                            JOptionPane.showMessageDialog(null, "USERNAME/PASSWORD WRONG", "WARNING!!", JOptionPane.WARNING_MESSAGE);
                        }
                        fr.close();

                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                 }
        });

        resetButton.setBounds(325, 200, 100, 25);
        resetButton.setFocusable(false);
        resetButton.addActionListener(new ActionListener(){
            @Override
            public void actionPerformed(ActionEvent e) {
                if (e.getSource() == resetButton) {
                    userIDField.setText("");
                    userPasswordField.setText("");
                }
    }
});

        registerAccount.setBounds(225, 200, 100, 25);
        registerAccount.setFocusable(false);
        registerAccount.addActionListener(new ActionListener(){
            @Override
            public void actionPerformed(ActionEvent e) {
                if (e.getSource()== registerAccount) {
                    frame.dispose();
                    new Register();
                }
    }
});

        frame.add(title);
        frame.add(title2);
        frame.add(userIDLabel);
        frame.add(userPasswordLabel);
        frame.add(messageLabel);
        frame.add(registerAccount);
        frame.add(userIDField);
        frame.add(userPasswordField);
        frame.add(loginButton);
        frame.add(resetButton);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(520, 420);
        frame.setLayout(null);
        frame.setVisible(true);



}   
}

Booking.java (line 378):

import java.awt.event.ActionEvent;
import java.io.FileWriter;
import javax.swing.JComboBox;

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JFrame.java to edit this template
 */

/**
 *
 * @author User
 */

public class Booking extends javax.swing.JFrame {


    /**
     * Creates new form Booking
     */
public Booking() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jComboBox1 = new javax.swing.JComboBox<>();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jPanel1 = new javax.swing.JPanel();
        jLabel6 = new javax.swing.JLabel();
        jLabel7 = new javax.swing.JLabel();
        jLabel8 = new javax.swing.JLabel();
        jLabel9 = new javax.swing.JLabel();
        jLabel10 = new javax.swing.JLabel();
        jLabel11 = new javax.swing.JLabel();
        Hall = new javax.swing.JTextField();
        Date = new javax.swing.JTextField();
        Time = new javax.swing.JTextField();
        Seats = new javax.swing.JTextField();
        tTicket = new javax.swing.JTextField();
        tPrice = new javax.swing.JTextField();
        jComboBox2 = new javax.swing.JComboBox<>();
        jComboBox3 = new javax.swing.JComboBox<>();
        jButton1 = new javax.swing.JButton();
        jLabel12 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setFont(new java.awt.Font("Segoe UI", 0, 18)); // NOI18N
        jLabel1.setText("Platinum Screen Cinema");

        jLabel2.setText("Now Showing :");

        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Jurassic World: Dominion", "Top Gun: Maverick", "Doctor Strange In The Multiverse Of Madness", "Doraemon The Movie: Nobita's Little Star Wars 2021" }));
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });

        jLabel4.setText("Booking Details :");

        jLabel5.setText("Number of Ticket :");

        jLabel3.setText("Seats  Area:");

        jPanel1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));

        jLabel6.setText("Hall:");

        jLabel7.setText("Date:");

        jLabel8.setText("Time:");

        jLabel9.setText("Total Ticket:");

        jLabel10.setText("Seats Area:");

        jLabel11.setText("Total Price:");

        Hall.setEditable(false);

        Date.setEditable(false);

        Time.setEditable(false);

        Seats.setEditable(false);

        tTicket.setEditable(false);

        tPrice.setEditable(false);

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel9)
                            .addComponent(jLabel11))
                        .addGap(18, 18, 18)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(tPrice, javax.swing.GroupLayout.DEFAULT_SIZE, 152, Short.MAX_VALUE)
                            .addComponent(tTicket)))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel6)
                            .addComponent(jLabel7)
                            .addComponent(jLabel8)
                            .addComponent(jLabel10))
                        .addGap(24, 24, 24)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(Date, javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(Time, javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(Seats)
                            .addComponent(Hall))))
                .addGap(6, 6, 6))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(Hall, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel6))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(Date, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel7))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 13, Short.MAX_VALUE)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel8)
                    .addComponent(Time, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel10)
                    .addComponent(Seats, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(21, 21, 21)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel9)
                    .addComponent(tTicket, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel11)
                    .addComponent(tPrice, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(14, 14, 14))
        );

        jComboBox2.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" }));
        jComboBox2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox2ActionPerformed(evt);
            }
        });

        jComboBox3.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Right", "Center", "Left" }));
        jComboBox3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox3ActionPerformed(evt);
            }
        });

        jButton1.setText("Book Now!");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(24, 24, 24)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel2)
                            .addComponent(jLabel5, javax.swing.GroupLayout.PREFERRED_SIZE, 109, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                                .addComponent(jComboBox2, javax.swing.GroupLayout.Alignment.LEADING, 0, 100, Short.MAX_VALUE)
                                .addComponent(jLabel3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                            .addComponent(jComboBox3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(5, 5, 5))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addContainerGap()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                                .addComponent(jButton1)
                                .addGap(111, 111, 111))
                            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                                .addComponent(jLabel12)
                                .addGap(139, 139, 139)))))
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 12, Short.MAX_VALUE)
                        .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(15, 15, 15))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(89, 89, 89)
                        .addComponent(jLabel4)
                        .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
            .addGroup(layout.createSequentialGroup()
                .addGap(200, 200, 200)
                .addComponent(jLabel1)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(18, 18, 18)
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jLabel2)
                .addGap(7, 7, 7)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel4, javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(11, 11, 11)
                        .addComponent(jLabel5)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(34, 34, 34)
                        .addComponent(jLabel3)
                        .addGap(18, 18, 18)
                        .addComponent(jComboBox3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(13, 13, 13)
                        .addComponent(jButton1)
                        .addGap(18, 18, 18)
                        .addComponent(jLabel12)))
                .addContainerGap(58, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        // TODO add your handling code here:
        if (jComboBox1.getSelectedIndex() == 0) {
Hall.setText("1");
Date.setText("25/6/2022");
Time.setText("9:00 AM");
        }
        if (jComboBox1.getSelectedIndex() == 1) {
Hall.setText("2");
Date.setText("30/6/2022");
Time.setText("8:00 PM");
        }
        if (jComboBox1.getSelectedIndex() == 2) {
Hall.setText("3");
Date.setText("26/6/2022");
Time.setText("10:00 PM");
        }
        if (jComboBox1.getSelectedIndex() == 3) {
Hall.setText("4");
Date.setText("27/6/2022");
Time.setText("5:00 PM");
        }
    }                                          

    private void jComboBox2ActionPerformed(java.awt.event.ActionEvent evt) {                                           
   if (jComboBox2.getSelectedIndex() == 0) {
       tTicket.setText("1");
       tPrice.setText("8 Ringgits");
   }
   if (jComboBox2.getSelectedIndex() == 1) {
        tTicket.setText("2");
        tPrice.setText("16 Ringgits");
   }
   if (jComboBox2.getSelectedIndex() == 2) {
        tTicket.setText("3");
        tPrice.setText("24 Ringgits");
    }
   if (jComboBox2.getSelectedIndex() == 3) {
         tTicket.setText("4");
         tPrice.setText("32 Ringgits");
    }
   if (jComboBox2.getSelectedIndex() == 4) {
          tTicket.setText("5");
          tPrice.setText("40 Ringgits");
    }
   if (jComboBox2.getSelectedIndex() == 5) {
          tTicket.setText("6");
          tPrice.setText("48 Ringgits");
    }
   if (jComboBox2.getSelectedIndex() == 6) {
          tTicket.setText("7");
          tPrice.setText("56 Ringgits");
    }
   if (jComboBox2.getSelectedIndex() == 7) {
         tTicket.setText("8");
         tPrice.setText("64 Ringgits");
    }
    if (jComboBox2.getSelectedIndex() == 8) {
          tTicket.setText("9");
          tPrice.setText("72 Ringgits");
    }
    if (jComboBox2.getSelectedIndex() == 9) {
        tTicket.setText("10");
        tPrice.setText("80 Ringgits");
    }
    }                                          

    private void jComboBox3ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        // TODO add your handling code here:
   if (jComboBox3.getSelectedIndex() == 0) {
        Seats.setText("Right");
   }
   if (jComboBox3.getSelectedIndex() == 1) {
        Seats.setText("Center");
   }
   if (jComboBox3.getSelectedIndex() == 2) {
        Seats.setText("Left");
    }
    }                                          

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
            try {
                                        FileWriter fw2 = new FileWriter("bookinglist.txt", true);
                    fw2.write(Hall.getText()+ "\t" + "/ " + Date.getText()+ "\t" + "/ " + Time.getText() + "\t" + "/ " + Seats.getText() + "\t" + "/ " + tTicket.getText() + "\t" + "/ " + tPrice.getText()+ "\n");
                    fw2.close();

                }catch(Exception ex) {} 
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Booking.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Booking.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Booking.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Booking.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Booking().setVisible(true);

            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JTextField Date;
    private javax.swing.JTextField Hall;
    private javax.swing.JTextField Seats;
    private javax.swing.JTextField Time;
    private javax.swing.JButton jButton1;
    private javax.swing.JComboBox<String> jComboBox1;
    private javax.swing.JComboBox<String> jComboBox2;
    private javax.swing.JComboBox<String> jComboBox3;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel10;
    private javax.swing.JLabel jLabel11;
    private javax.swing.JLabel jLabel12;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JLabel jLabel9;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField tPrice;
    private javax.swing.JTextField tTicket;
    // End of variables declaration                   
}

I see two places that could be the reason.
Line 63 and line 377.

The last time you posted a data file lines 2 and 3 were the same. If the user/pw matched those lines you would get two Booking forms.
Lines 55-65 should really be replaced by a method call, eg
isLoginSuccess = isValidUSerAndPassword(user, pass);
.... and refactor the user/pw validation code out of the UI, because deep application logic like that does not belong in the user interface code.

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