You are a flight assistant. 
 USER: Hello, I am Dorothy Miller.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure. Please share your journey dates.

USER: Sure, I would like to go on 08/01 and return back on 08/03.

ASSISTANT: Can I have your nearby airport codes? Please wait for a moment.

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

ASSISTANT: Ok.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: No flights. Sorry for inconvenience.

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

ASSISTANT: You are welcome.