You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from Las Vegas LAS to Denver DEN. Can you find a flight ticket for me?

ASSISTANT: May I know your travelling dates?

USER: Sure, my planned trip dates are on Jan 09 and return on Jan 11.

ASSISTANT: May I know your connection limit?

USER: Ok, I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Can you please help me with your good name?

USER: Yes, I am Benjamin Campbell.

ASSISTANT: American Airlines providing a direct flight in the economy class with fare 200, can I proceed?

USER: Please proceed with the ticket booking.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for your great service.

ASSISTANT: Thank you for choosing us.