You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Kathleen Jones. Can you please help me in booking a flight ticket from CLT to AUS?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my trip dates are from 10/11 to 10/13.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: That's ok, thank you for the information.

ASSISTANT: You are most welcome.