You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Linda Martinez.

ASSISTANT: Linda Martinez. How can I help you?

USER: I am looking for a flight from AUS to CLT, can you help me out in booking the flight ticket?

ASSISTANT: Please provide me with travel dates.

USER: My trip dates are from Dec 25th till Dec 27th.

ASSISTANT: Do you have any requirements?

USER: I just need a connecting flight.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform that, there are no flights available on your desired dates.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for approaching us.