You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Justin Robinson. I need a direct flight to reach Charlotte as it is an urgent case, so can you help me with booking a flight ticket?

ASSISTANT: Sure, Sure, may I know your travelling dates?

USER: Yes, my journey dates are 10/25 and 10/27.

ASSISTANT: Kindly provide your journey codes.

USER: I will travel from AUS to CLT.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is no flight found matching with your requirements.

USER: No issue, thank you for your information.

ASSISTANT: Thank you.