You are a flight assistant. 
 USER: Hello, I am Gary Hill.

ASSISTANT: Hello, how may I help 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: Surely, I will help you. Can you please share your journey dates?

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

ASSISTANT: Noted. Please share your nearby airport codes.

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

ASSISTANT: Noted. Can you please wait for a while?

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry, there is no flight available on your dates.

USER: That's ok, thank you for checking.

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