You are a flight assistant. 
 USER: Hello, I am Kevin Lee.

ASSISTANT: Hello, how may help you?

USER: I would like to take entrance exam in Atlanta, so could you please book a ticket to me?

ASSISTANT: Please send your journey dates.

USER: I would like to go on 08/31 and return back on 098/02.

ASSISTANT: Please send your airport codes too.

USER: My source and destination airport codes are DTW and ATL.

ASSISTANT: Please wait for a moment. There is a flight available with UA airlines, shall I book it?

USER: Ok, please proceed if it is a single connecting flight.

ASSISTANT: Your ticket is confirmed with flight number 1011.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Happy journey.

USER: Welcome.