You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I and my friend's planned for a get together in Atlanta. So please book a ticket for me from Chicago.

ASSISTANT: That's good to hear, please provide your travel dates with airport codes.

USER: The source airport is ORD on 01/20 and the destination airport is ATL, return will be on 01/22.

ASSISTANT: Let me check is there any flight available or not, mean while may I know your name please?

USER: Yes, my name is Nicholas Evans.

ASSISTANT: There is a flight available with United Airlines.

USER: Can you please tell me the connection limit?

ASSISTANT: Do you want to book the ticket? There is only 1 connection.

USER: Ok, then book my ticket.

ASSISTANT: Nicholas, your ticket has been booked.

USER: Thank you so much.

ASSISTANT: Thanks for contacting us, have a great party with your friends.