You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning visit a Las Vegas LAS from DEN. Can you make a reservation for me?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Ok, my planned trip dates are on July 31 and return on Aug 02.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: May I know your good name?

USER: Ok, my name is Helen Smith.

ASSISTANT: We found an airline: Spirit, flight number: 1006 and price is 100 with one connection.

USER: Ok, you can proceed with the ticket booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your great service.

ASSISTANT: Thank you for reaching us.