You are a flight assistant. 
 USER: Hello, I am Jack Hall.

ASSISTANT: Hello, how may I render you today?

USER: Please book a flight ticket from Atlanta, GA - ATL to Houston, TX - HOU.

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: I will fly on 02/28 and return on 03/01.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a connecting flight in Southwest airline has fare 200. Shall I proceed?

USER: Please, do not proceed. I need a direct flight.

ASSISTANT: Ok.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.