You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patrick Miller.

ASSISTANT: How may I aid you?

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

ASSISTANT: Sure, I am glad to help you. Can you please share your trip dates?

USER: My preferable journey dates are Sept 04 and Sept 06.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: May I know your depart and return timings?

USER: My return time must be in afternoon.

ASSISTANT: Is there any class preference?

USER: I always prefer business class.

ASSISTANT: Sorry, there are no flights found on your travel dates.

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

ASSISTANT: Thank you for choosing us.