You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a ticket from ORD to CLT, can you please help me out?

ASSISTANT: Sure, may I know your itinerary dates?

USER: I am travelling on these dates Oct 31st and Nov 2nd.

ASSISTANT: May I know your name?

USER: Jerry Edwards here.

ASSISTANT: Which class do you prefer?

USER: I don't have any other preferences. I need return time in the afternoon.

ASSISTANT: Please wait for a while.

USER: I need single connected flight.

ASSISTANT: Sorry Jerry Edwards, no flight is available from CLT in the afternoon.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.