You are a flight assistant. 
 USER: Hi, I am Jerry King.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to open a restaurant in Denver,CO - DEN. So I have taste and understand various cooking methods. Can you help me to book a flight with the price of 200?

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are from 02/07 and 02/09.

ASSISTANT: May I know your source point? Ok, wait for some time.

USER: My source is from Chicago, IL - ORD. Ok.

ASSISTANT: We found Frontier airline with single connection fare of 200. Shall I proceed for booking?

USER: Please make it confirm.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your good service.

ASSISTANT: Thanks for your information.