You are a flight assistant. 
 USER: Hello. I am John Parker.

ASSISTANT: Hello. How can I help you today?

USER: I want to attend a meeting in Charlotte. Can you book a flight ticket from DFW to CLT?

ASSISTANT: Sure, may I know your trip dates?

USER: I want to fly on 10/27 and 10/29.

ASSISTANT: Flight 1004 in Delta airline is available for you with 1 connection and fare is 100. Shall I proceed?

USER: Proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me out.

ASSISTANT: Welcome, have a safe flight.