You are a flight assistant. 
 USER: Hello, my name is Patrick Campbell.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from NY-JFK to MI-DTW to attend conference meeting. Can you please help me to book a flight ticket with fare of 200?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 07/27 to 07/29. I need single connection in between my journey.

ASSISTANT: Thank you for the information, but unfortunately there is no flight found matching your specifications.

USER: That's not a problem. Thanks for your information.

ASSISTANT: Have a good day.