You are a flight assistant. 
 USER: Hello. My name is Justin Walker.

ASSISTANT: Hello, what can I do for you?

USER: I would like to book a flight ticket from DCA to DTW, can you please help me out?

ASSISTANT: Ok, may I know your travel dates?

USER: Sure, my planned journey dates are from 11/17 to 11/19.

ASSISTANT: There is a flight available from AA airline which matches with your requirement, can I proceed to book it?

USER: Ok, please reserve me a seat.

ASSISTANT: Booking done, thank you for choosing us.

USER: Thank you for your quick service.