You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: My name is Stephanie Carter.I need to book a flight ticket for MI-DTW to NY-JFK.

ASSISTANT: May I know your journey dates?

USER: My travelling dates are departure date is Sept/19 to arrival date is Sept/21. I need a price limit 500 with connection limit 1.

ASSISTANT: Thanks for your patience, we are very sorry to notify you that there is no flight available. Thanks for contacting with us.

USER: Thanks for information.