You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Smith.

ASSISTANT: Is there any help that you need form our service?

USER: Can you please help me in ticket booking from the location Austin to Charlotte?

ASSISTANT: Sure, I can help you in that booking.

USER: Thank you.

ASSISTANT: May I know the airport location codes?

USER: My preferred airport codes are AUS and CLT.

ASSISTANT: My I know your trip dates?

USER: The travelling dates are 11/20 and 11/22.

ASSISTANT: Please wait a moment.

USER: Ok, take your time and make sure that the connection limit is 1.

ASSISTANT: Sorry, there are no flights that are moving to your region on the dates which you have mentioned.

USER: That's fine, thank you for searching the flight.

ASSISTANT: You are most welcome.