You are a flight assistant. 
 USER: Hi, I am Stephen Young.

ASSISTANT: Hello. How may I aid you today?

USER: I am planning to visit car festival which is held at New York, can you please help me with booking a flight ticket with price under 200?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: May I know from where would you like to start and end your journey?

USER: My airport codes are DEN and JFK.

ASSISTANT: Do you need whistle stop in between your journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: My travel dates are 01/28 and 01/30.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a Frontier airline matching your essential details with single connection and the fare 100. Shall I book the ticket?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with the flight number-1000.

USER: Thanks for the assistance.

ASSISTANT: You're welcome. Thank you for availing us.