You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I need a direct flight to travel from New York, NY - JFK to Detroit. Can you aid me in booking a flight ticket?

ASSISTANT: Sure, kindly mention your travel dates?

USER: My planned dates are 01/03 - 01/05.

ASSISTANT: May I know your destination airport code?

USER: My landing airport code is MI - DTW.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flight found with your requirement.

USER: Thanks for your service.

ASSISTANT: May I know your name?

USER: I am Paul Green.

ASSISTANT: Thanks for reaching us, have a good day.