You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a flight ticket from ATL to LAX?

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are Mar 17 to Mar 19.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection of flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: Kevin Jones.

ASSISTANT: I am sorry no flights found on your route.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us.