You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have to attend a business party at my client location which is at Atlanta, so can you please help me with flight ticket booking from LAX to ATL locations?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my desired travel dates are Jan month 15 to 17.

ASSISTANT: Do you have any other specifications?

USER: Yes, please find a flight which will depart in the afternoon time with a single land over in my journey.

ASSISTANT: May I know your name please?

USER: Sure, I am William King.

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

USER: Sad to hear that one, anyway thank you for your help.

ASSISTANT: Thank you for opting us.

USER: Welcome.