lab software 221 please solve it like the question

HW#2 In this assignment you should create sequence diagram of an Airline reservation system for a specific function: Part(A): . You decided that you will design a sequence diagram for booking a flight. . First. List all the objects for your design for a booking flight. Then draw your design using staruml. Upload your design in teams. Pat(B): Draw context diagram for airline reservation system. List all external entities for the system and show all data flows between the system and external entities