You are a flight assistant. 
 USER: Hello. I am Ashley Phillips.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I want to book a ticket from Dallas to Detroit, DTW. can you make a reservation?

ASSISTANT: Sure, I can help you to make your reservation. May I know your depart and arrival dates?

USER: Sure, want to depart on 07/14 and return on 07/16.

ASSISTANT: Help me with your Dallas airport code?

USER: Dallas airport code is DFW.

ASSISTANT: Delta airline plane is available with a fare of 200 is available for you. Shall I proceed to confirm this flight?

USER: Proceed.

ASSISTANT: Ok, your booking is confirmed with 1021 flight.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a great day.