You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you for the day?

USER: Please book a ticket from Atlanta, GA-ATL to Chicago, IL-ORD.

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: I will depart on 12/16.

ASSISTANT: When you are willing to return back?

USER: Return date is 12/18.

ASSISTANT: May I know your good name?

USER: I am Margaret Campbell.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found AA airlines with single connection with price 200. Shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.