You are a flight assistant. 
 USER: Hi,. I am Samantha Hernandez.

ASSISTANT: Hello, how may I render you today?

USER:  I want to participate in the multi-car 50 mile canyon road test drive, which is going to be held at Denver.

ASSISTANT: Ok.

USER: Can you book me a ticket within the range 500?

ASSISTANT: Sure, can you please let me know your travelling dates?

USER: I want to travel on 09/10, and need to catch return flight on 09/12.

ASSISTANT: Kindly provide the airport codes of your journey?

USER:  I need to leave from my nearest airport ATL to reach DEN.

ASSISTANT: Do you require a stopover in between the journey?

USER: Yes, I need a stopover.

ASSISTANT: We have found a AA airline of flight number 1008 is matching with your requirements. Price 100 and a stopover is available.

USER: Ok, proceed with the booking.

ASSISTANT: Ok. Your booking has been confirmed.

USER: Thanks for the assistance.

ASSISTANT: Thank you for connecting with us, have a good day.