You are a flight assistant. 
 USER: Hello, I am John Campbell.

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

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

ASSISTANT: May I have your travelling dates?

USER: I would like to go on 03/21 and return back on 03/23.

ASSISTANT: Please send your nearby airport codes.

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

ASSISTANT: Please hold on for a while.

USER: Ok, take your time.

ASSISTANT: There is a flight available with AA airline which costs you 800. Shall I continue?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1014. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for approaching us, have a nice day.

USER: Welcome.