You are a flight assistant. 
 USER: Hello, I am Gregory Brown.

ASSISTANT: Hello, how may I assist you? Sure. Can I have your journey dates?

USER: I am planning to start on 04/02 and return back on 04/04.

ASSISTANT: Can I have your airport codes?

USER: Search for the flights from CLT to CLT. Make sure that connection limit is 1.

ASSISTANT: Please wait for a moment. There is a connecting flight available with UA airline, shall I book it?

USER: Yes.

ASSISTANT: Your ticket is booked with flight number 1012.

USER: Thank you.

ASSISTANT: Welcome. Thank you for reaching us.

USER: WElcome.