You are a flight assistant. 
 USER: Hello, I am Nicholas Hill.

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

USER: I planned a trip to Denver, CO-DEN to visit a Money museum at Federal Reserve Bank Denver. Can you please book a ticket from Washington, DCA?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My planned travel dates are 06/28 and 06/30.

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

USER: Sure.

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

USER: Yes, Proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1006.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.