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

ASSISTANT: Hello, how may I help you at this moment?

USER: I am planning to attend convocation meeting at Detroit, can you please help me with booking a flight ticket?

ASSISTANT: Please send your journey dates.

USER: Sure, I would like to take off on 07/28 and return back on 07/30.

ASSISTANT: Can I have your source and destination airport codes?

USER: My source airport code is LAS and the destination airport code is DTW.

ASSISTANT: Please wait for a moment. Thank you for waiting. There is a flight available with JetBlue airlines. Shall I book it?

USER: Please proceed with the booking of the price limit does not exceed 200.

ASSISTANT: Your ticket is confirmed. Flight number is 1020.

USER: I appreciate your help, thank you.

ASSISTANT: You are welcome. Thank you for reaching us.