You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I'm Nicholas Lee. I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from ATL?

ASSISTANT: Please help me with your airport codes?

USER: Sure, I would like to take off on 11/01 and return back on 11/03.

ASSISTANT: There is a flight with flight number 1009, can I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Most welcome.