You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Can you help me to book a flight ticket from DEN to DCA?

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are Feb 28 and Mar 01.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: I am Christopher Hall.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: No, thanks for asking.

ASSISTANT:  Thank you for waiting and we have found a flight in an economy class with 1 connection in United Airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your booking is done with flight number 1017.

USER: Thank you.

ASSISTANT: Thank you for approaching us.