You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Richard Moore here. I would like to prefer a flight with lay-by option for my business trip to Atlanta. Can you book the flight ticket?

ASSISTANT: Sure, can you please share your journey dates?

USER: The trip dates are from July 31 to Aug 02.

ASSISTANT: Kindly mention your source point?

USER: The source airport code will be CLT.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: The destination airport code will be ATL.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.