Draw Class Diagram for Online Bus Ticket Booking System. The system supports from searching of Busses from source to destination. Display type of seats, fare, availability of seats, option for seat selection. Also, system support online payment. Make necessary assumptions required.

To design the class diagram for the Online Bus Ticket Booking System, we need to identify the key entities and their relationships. Here's a possible class diagram that addresses the requirements:

 ┌───────────────────┐ │    User            │ │───────────────────│ │ -userId            │ │ -name              │ │ -email             │ │ -password          │ │ -phoneNumber       │ │───────────────────│ │ +register()        │ │ +login()           │ └─────────────┬──────┘                 │                 │1    ┌─────────────────────┐                 └─────┤  BookingTransaction  │                       │─────────────────────│                       │ -transactionId       │                       │ -bookingDate         │              _________ _______ _____ ________ _______ ___ ___ ____.
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