You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I love car racing, I would like to visit NASCAR hall of fame at Charlotte. Can you help me in booking my ticket?

ASSISTANT: Sure, please provide me your journey dates.

USER: My journey dates are from 01/15 to 01/17.

ASSISTANT: Can you help me with your airport codes for enhanced search?

USER: My origin airport code is LGA and my destination airport code is CLT.

ASSISTANT: May I know your name please to proceed further?

USER: My name is James Walker.

ASSISTANT: Sorry to say, there are no flights available at this moment due to heavy bookings.

USER: It's ok, I will find any other way to reach there.

ASSISTANT: Thank you for choosing us.

USER: Thank you for providing information.