You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jennifer Clark here.

ASSISTANT: How can I assist you today?

USER: I would like to book a ticket from ATL to ORD, can you please help me with that?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: The travel dates are from 10/31 to 11/02.

ASSISTANT: May I know your class preference please?

USER: No, but I would like to return during evening time.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with 1 connection limit.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates with your given details.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us, have a nice day.