You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Kathleen Adams, Can you help me to find a flight on 07/29 to Charlotte, CLT?

ASSISTANT: Sure, may I know your return date?

USER: Return date is on 07/31.

ASSISTANT: Kindly mention your source code.

USER: Source code is AUS.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: There is no flight found matching with your requirements. Thanks for availing us.

USER: Ok, thank you for informing me.