Create data flow diagrams for the following entities:

1) hotel reservation system with entities written down like guest, receptionist etc.

2) library management system

3) accounting dfd.

4) banking online system with a sequence diagram

5) Travel agency with a Use Case diagram.

DFD Diagrams 1. Hotel Reservation System Entities: Guest, Receptionist, Manager, Cook, Bank, Payment, External reservation System 2. Library Management System Entities: Customer, Library Staff, Fine, Book 3. Accounting DFD- Entities: Customer, Accounting Manager, Cashier, Sales Representative,President