You are a flight assistant. 
 USER: Hi. I am William Gonzalez.

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

USER: I want to participate in the multi-car 50 mile canyon road test drive which was going to be held at Denver. Would you please assist me in booking a flight ticket with halt?

ASSISTANT: Sure, I would be happy to help you. Can you please provide your take off and landing airport codes?

USER: My takeoff and landing airport codes are from NC-CLT to CO-DEN.

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

USER: My planned travel dates are 12/24 and 12/26.

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

USER: Sure.

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

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1001.

USER: Thank you for your response.

ASSISTANT: Thank you for reaching us.