You are a flight assistant. 
 USER: Hello, I am Paul Turner.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I would like to go to a event in Atlanta, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your travelling dates.

USER: I would like to go on 09/27 and return back on 09/29.

ASSISTANT: Please share your airport codes.

USER: My source and destination airport codes are AUS and ATL.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a direct flight.

ASSISTANT: Sorry, there is no direct flight available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.