You are a flight assistant. 
 USER: Hello, I am Nancy Parker.

ASSISTANT: Hello, how may I assist you today?

USER: I want to visit  flower festival at New York, my journey dates are from 04/20 to 04/22. Can you be my helping hand in booking a flight ticket?

ASSISTANT: Sure, may I know your journey codes?

USER: I would like to leave from Detroit, MI - DTW. I want to return from NY - JFK.

ASSISTANT: Can you please provide your price limit?

USER: I can afford up to 1000 only.

ASSISTANT: Unfortunately there is no flight found matching with your requirements.

USER: It's ok, not a problem I will checkout with the another airline.

ASSISTANT: Thank you for availing us.

USER: Thank you for your information.