1.3 Functional Requirements Specification

• Users must register for an account.
• Users must authenticate themselves through a secure login process.
• Users must be able to update their profiles.
• Users must be able to check seat availability for selected flights.
• Users must receive payment confirmation for successful transactions.
• Users must have the option to request cancellations or modifications to their bookings.
• Users can opt-in to receive SMS alerts for critical updates.
• The system can provide different user roles for passengers, travel agents, and airline staff.
• The system must display available flights based on user input.
• The system can offer advanced search options for users to filter flights based on preferences.
• The system must update flight information in real-time.
• The system must allow users to select and book seats for their preferred flights.
• The system must generate electronic tickets for confirmed bookings.
• The system must integrate a secure payment gateway for processing transactions.
• The system can provide a secure payment history for users.
• The system must follow airline policies for handling cancellations and modifications.
• The system must integrate with Global Distribution Systems (GDS) to expand the range of available flights.
• The system must send email notifications for booking confirmations, changes, and flight updates.
• The system must encrypt sensitive user data to ensure security.
• The system must be designed to support users with disabilities