You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you please book a flight ticket from ATL to JFK?

ASSISTANT: Sure, May I know the travelling dates?

USER: My travelling dates are Sept 19 and Sept 21.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Frank Edwards.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for opting us.