That's a good start on the Use-Case diagram. It still isn't complete. For example, in item #3, "Passenger seeks information on fare, train timings, and availability of tickets.", you only have one use-case, that of availability. So, go back through all of the points and make sure you cover all contingencies.
Better! I might change "Informs Availability" to "Answers Query", though that is a nit-pick... :-)
So, just do a review to be sure that you have covered all the points in your use-cases. I'm sure you'll do ok, but you never know. Professors often have their own pre-conceptions how it should be, and look for you to provide a reasonable reflection of that. So, also think about how the professor presented the material in class as well, but don't try to be too much in agreement either. A bit of independent thinking is a good thing.
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Help! I want to create a java program that finds the highest even integer among the values entered by the user. Stop asking values when a value less than 1 have been entered. If no even integer is entered, display "No Even Integer"