You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Los Angeles, will you help me in booking the flight ticket from ATL to LAX?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates are Mar 16 and Mar 18.

ASSISTANT: Do you have any specifications?

USER: I need a flight with single connection limit.

ASSISTANT: May I know your name please?

USER: Myself Carolyn Collins.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.