You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Carol Adams, want to travel from LAX to AUS.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 02/22 to 02/24.

ASSISTANT: There is no flights available.

USER: It's ok, thank you.

ASSISTANT: Most welcome.