You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking my flight ticket from ATL to CLT?

ASSISTANT: Ok, may I know your planned dates for this journey?

USER: My travelling dates are Sept 17 and 19.

ASSISTANT: Do you need a connecting flight?

USER: I need direct flight.

ASSISTANT: May I know your name?

USER: Myself Justin Smith.

ASSISTANT: Sorry to say, there are no flights available for your journey.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us. Have a nice day.