init1.py Handles query processing and posts data to webpage

templates/ airplane_list.html Shows the airline’s list of airplanes after airline staff adds a new plane to the database

customer_flight_list.html Shows all flights of a given customer when airline staff makes such request

flight_status.html Shows status of a given flight when user makes such request

flight.html Shows all flights of a flight search result

goodbye.html Shows the goodbye page after logout.

home_booking_agent.html Homepage of booking agent

home_Customer.html Homepage of customer

home_staff.html Homepage of airline staff

index.html Frontpage of the system

login.html Provides login function

purchase_agent.html Provides purchase function for booking agent

purchase.html Provides purchase function for customer

purchaseAuth.html Provides purchase form for initiating purchase request

register.html Provides register function

success_purchase.html Shows purchase success page

unauthorized_warning.html Shows warning page when unauthorized operation occurs