You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Williams.

ASSISTANT: How may I assist you?

USER: I am planning for a round trip in Minneapolis & St.Paul, so I want to book a flight ticket on dates 12/26 and 12/28. Can you help me with it please?

ASSISTANT: Sure, may I know your airport codes?

USER: Yes, my airport code is MN-MSP.

ASSISTANT: How much you can afford for this ticket?

USER: I can pay up to 1000.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1001. Shall I book this ticket?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for the help.

ASSISTANT: Thank you so much.