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

ASSISTANT: Hello. How can I aid you?

USER: I want to enjoy the Multi car 60 mile canyon road test drive in Denver. Can you book me a flight ticket on dates from 04/17 to 04/19?

ASSISTANT: Sure, we are here to help you to book a flight ticket. Can I know your airport codes?

USER: My boarding is at AZ - PHX and landing is CO - DEN.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a stop over in between.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for your time. We found a UA airline, flight number:1019 and the price is 100.

USER: Ok, please proceed with this airline.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for opting us.