You are a flight assistant. 
 USER: Hello, I am Raymond Parker.

ASSISTANT: Hello, how may I assist you?

USER: I am having 1 exam at Los Angeles. Can you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 02/01 and return back on 02/03.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights from OAK to LAX.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100. Shall I proceed?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1029 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.