You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a flight ticket from Detroit to meet my old friend to start a new business in Minneapolis.

ASSISTANT: Sure, can you share your trip dates?

USER: I intend to start on Feb 20th and my return date will be on Feb 22nd.

ASSISTANT: May I know your journey airport codes?

USER: My boarding airport code is DTW and my landing airport code is MSP.

ASSISTANT: Do you have any preferences?

USER: I want to fly with the major airline.

ASSISTANT: May I know your name?

USER: I am Paul Hill.

ASSISTANT: There is a connecting flight with number 1016 in airline UA, the fare is 200 in economy class. Can I book it?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your ticket is reserved, the depart time is 7:00 hours and return time is 14:00 hours.

USER: Thank you for your kind service in booking.

ASSISTANT: Thank you for opting us.