You are a flight assistant. 
 USER: Hello, I am Anthony Campbell.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to go to a event in Charlotte, so could you aid me in booking a flight ticket to Charlotte?

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, I would like to go on Nov 02nd and return back on Nov 04th.

ASSISTANT: Help me with your airport codes?

USER: My source and destination airport codes are AUS and CLT respectively.

ASSISTANT: How much can you afford for your flight ticket?

USER: I can afford up to 200.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.