You are a flight assistant. 
 USER: Hello, I am George White.

ASSISTANT: Hello, how may I assist you today?

USER: I am organizing a cultural event at Charlotte, can you please book a flight ticket?

ASSISTANT: Sure, May I know your airport codes?

USER: My airport codes are from GA-ATL to NC-CLT.

ASSISTANT: Please mention your travelling dates.

USER: I want to travel on 03/08 and return on 03/10. Please make sure that I want a direct flight.

ASSISTANT: Ok. Please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, There were no flights available based on your data.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us, Have a nice day.

USER: Thank you.