(Question) Draw an architecture diagram for the system

_{I need the diagram as the picture below but for the Bus Booking System}

Bus Booking System (BBS) is a computer-based booking system that allows customers to book tickets online through mobile phones and other electronic devices. With the system now, customers can make a booking for any bus that is scheduled to depart from a particular bus station. Among the functions of this BBS system: - Customers can search for and book tickets for buses - When searched for a bus, the system displays all the buses that are available for booking. - System able to keep track of the available seats on each bus, and when a customer books a ticket, the system updates the number of available seats. - Customers can cancel tickets and view the status of their booking. - System can show which buses are departing from which stations and how long it will take to reach their destination