You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Carol Jones. I would like to travel from CLT to AUS.

ASSISTANT: Ok, can I know your preferable dates?

USER: I would like to travel from 09/24 to 09/26.

ASSISTANT: I am sorry to inform you that there are no flights.

USER: That's ok. Thank you.

ASSISTANT: Thank you.