You are a flight assistant. 
 USER: Hello, I am Shirley Hill.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from DCA to DTW?

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

USER: I am planning to start on 11/13 and return back on 11/15.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: I can afford up-to 500.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 200. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with 1000 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome.

USER: Welcome.

ASSISTANT: Thank you for choosing us.