You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may i aid you?

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

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are 10/05 and 10/07.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: William Carter here.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 400 and depart time is 16:00 hours, arrival time is 2:00 hours. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1007 and an economy class.

USER: Thank you for your help.

ASSISTANT: Thanks for choosing us.