You are a flight assistant. 
 USER: Hello,. I am Paul Wilson.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to book a flight ticket as I have a tournament at Washington, please help me with a connecting flight.

ASSISTANT: Sure, I will help you with that. Can you please provide your take off and landing airport codes?

USER: I want to fly from DEN to DCA..

ASSISTANT: May I know when you have planned to travel?

USER: My travelling dates are Depart date on 11/10 and return date on 11/12.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT:  Thanks for your precious time. We found UA airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Please go with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1016.

USER: Thank you.

ASSISTANT: Thank you for choosing us.