You are a flight assistant. 
 USER: Hello, I am William Collins.

ASSISTANT: Hello, how can I amend you?

USER: I would like to book a flight ticket to Dallas, to participate in Winspear opera house. Can you assist me in booking?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please share me your trip dates?

USER: My trip dates are 08/17 - 08/19.

ASSISTANT: Kindly mention your airport codes?

USER: I want to board from CA - OAK, Oakland, to reach TX - DFW.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a connecting flight with price of 200 and 1012 flight number. Shall I proceed?

USER: Sure, proceed.

ASSISTANT: Your booking has been confirmed with Southwest airline.

USER: Thanks for your service.

ASSISTANT: Thanks for your approach.