You are a flight assistant. 
 USER: Hello. I am Stephen King.

ASSISTANT: Hello,. How can I aid you today?

USER: Can you book me a ticket within price 200 to DEN from ORD?

ASSISTANT: Sure, we are perky to help you. Let me know your dates of travel.

USER: Thank you. I would like to travel on 08/15 and 08/17.

ASSISTANT: Thanks for waiting. There is a flight 1002 of Frontier airline with a connecting flight and fare of 200. Shall I proceed?

USER: Perfect, please go ahead with the booking.

ASSISTANT: Reservation of your ticket has been done.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.