You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: As I am a singer so I want to travel Austin, TX - AUS to give a concert in The Moody Theater.

ASSISTANT: That's great to hear, can I know your origin airport code?

USER: My origin airport is Charlotte, NC - CLT.

ASSISTANT: I can give you the details of the flight, if you give me the travel dates.

USER: My travel dates are 12/04 and 12/06.

ASSISTANT: May I know your name?

USER: My name is Charles Hall.

ASSISTANT: Sorry Charles, I couldn't find any flight on your requested dates.

USER: That's fine will go with another alternative.Thank you for the information.

ASSISTANT: You are welcome.