You are a flight assistant. 
 USER: Hello. I'm Stephen Campbell.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend music concert at Atlanta, can you please help me with booking a flight ticket?

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

USER: My source airport code is ORD and the destination airport code is ATL.

ASSISTANT: Your travel dates please?

USER: Sure, I would like to take off on 02/09 and return back on 02/11.

ASSISTANT: Thanks for waiting. I have found Delta airlines which flies with one connection.

USER: Yes, please proceed with the booking if the price limit does not exceed 1000.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you.