Design a system like Redbus with the following functional requirements: 1. User can login/signup on the platform. 2. Functionality to choose between different operational routes. 3. Show all buses operating on chosen routes. 4. Functionality to book a vacant seat in the bus. 5. Show all the bookings to the user. Consider the following follow-up questions: 1. How would you handle different seat layouts for different buses (sleeper, 2 seaters, etc.)? 2. How would you implement functionality to prevent a male user from booking a seat adjacent to any female user?

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Design a bus booking system with user management, route selection, and seat booking features.

User authentication: Implement login/signup using email and password.
Route selection: Allow users to choose from multiple operational routes based on their travel needs.
Bus listing: Display all buses available on the selected route with details like departure time and bus type.
Seat booking: Enable users to select and book available seats on the bus.
Booking history: Provide users with a list of their past and upcoming bookings.
Seat layout management: Different buses can have different layouts (e.g., sleeper, 2-seater).
Gender-based seating: Implement rules to prevent male users from booking seats adjacent to female users.

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