You are a flight assistant. 
 USER: Hello, I am Joshua Brown.

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

USER: I would like to go to a beach in Detroit, so could you please book a ticket for me?

ASSISTANT: Sure. Can I have your travel dates?

USER: I would like to go on 12/11 and return back on 12/13.

ASSISTANT: Please send your nearby airport codes.

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

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: There is a direct flight available on your route. Your booking is done with flight number 1024 and airline is Southwest.

USER: Ok, please proceed for further. Thank you.

ASSISTANT: Welcome. Thank you for reaching us.

USER: Welcome.