You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please book a flight ticket from DFW to SEA.

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are 11/29 and 12/01.

ASSISTANT: Do you have any connection limit?

USER: I am comfortable to travel in a single connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Are there any other specifications?

USER: No, I don't have any specifications.

ASSISTANT: Please forward your name.

USER: Nancy Wilson here.

ASSISTANT: We found a connecting flight of fare 100 with airline Southwest ans number 1003. Can I book?

USER: Yes, book the ticket.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.