You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to book my ticket from ORD to ATL. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, can I know your travel dates please?

USER: My travel dates are from Dec 04 to Dec 06.

ASSISTANT: Is there any airline preference?

USER: No, I am comfortable with any airlines.

ASSISTANT: Any other preferences?

USER: I need a flight with single connection limit.

ASSISTANT: Please mention your name to proceed further.

USER: Sure, myself John Thomas.

ASSISTANT: Sorry, no flights found as per your requirement.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.