book a seat and move to user histoy page and see his booked seats . is this a good way ? what should i do , i do not know :( (airline seat reservation)

<?php
session_start();
    if(!isset($_COOKIE['loggedin'])){
        header("location:index.php");   
    }

    ?>
<html>
<head>
<title><?php echo $_SESSION['user'];?></title>
<style type="text/css">
h5 {
    position: absolute;
    background:yellow;
    color: blue;
    width: 976px;
    height: 247px;
    left: 80px;
    top: 170px;
}
</style>
</head>
<body>
<form name="" action="history.php" method="POST">
<h1 style="text-align:center">Wellcome</h1>
<a href="logout.php"><p style="text-align:right">Logout</p></a>
<h5><table border='1'>
<tr>
<th>Name</th>
<th>Departure City</th>
<th>Arrival City</th>
<th>Departure Time</th>
<th>Price</th>
<th>Is Reserve</th>
</tr>
<tr>
<td><input type="text" name="n" value="PIA" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Hyderabad" readonly></td>
<td><input type="text" name="dt" value="3:00PM" readonly></td>
<td><input type="text" name="p" value="5000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Airblue" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Islamabad" readonly></td>
<td><input type="text" name="dt" value="12:00PM" readonly></td>
<td><input type="text" name="p" value="6000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Airindus" readonly></td>
<td><input type="text" name="dp" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Lahore" readonly></td>
<td><input type="text" name="dt" value="4:00PM" readonly></td>
<td><input type="text" name="p" value="7000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Shaheen Air" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Peshawar" readonly></td>
<td><input type="text" name="dt" value="5:00PM" readonly></td>
<td><input type="text" name="p" value="8000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Aero Asia" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Faislabad" readonly></td>
<td><input type="text" name="dt" value="11:00AM" readonly></td>
<td><input type="text" name="p" value="9000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Hajvairy" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Multan" readonly></td>
<td><input type="text" name="dt" value="9:00PM" readonly></td>
<td><input type="text" name="p" value="12000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Bhoja Air" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Rahimyarkhan" readonly></td>
<td><input type="text" name="dt" value="11:00PM" readonly></td>
<td><input type="text" name="p" value="10000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
<tr>
<td><input type="text" name="n" value="Pak Airways" readonly></td>
<td><input type="text" name="dc" value="Karachi" readonly></td>
<td><input type="text" name="ac" value="Queta" readonly></td>
<td><input type="text" name="dt" value="9:00PM" readonly></td>
<td><input type="text" name="p" value="11000" readonly></td>
<td><input type="submit" name="sub" value="reserve"></td>
</tr>
</h5>
</form>
</body>
</html>

I guess you can store the them in session as an array.However, before doing so, you need to fix your form first.

Does the list of flight have to be hard coded? I thought you need to read the data from somewhere instead of hard code them this way???