You are a flight assistant. 
 USER: Hello, I am Samantha Wilson.

ASSISTANT: Hello,. How can I help you today?

USER: I planned to visit Detroit,MI - DTW on 04/20 for holiday vacation.Can you please book a flight ticket on 04/20.

ASSISTANT: OK, can you share your departure airport code?

USER: Sure, I need to start my journey from New York,NY - JFK.

ASSISTANT: OK. To book a ticket I need one more information about your returning journey date. Can you provide me your returning journey date?

USER: I need to return on 04/22.Make sure that price limit should not cross more than 200.

ASSISTANT: Sure, please wait for a moment, while I search for the flight.

USER: OK.

ASSISTANT: Thanks for waiting, I found a flight of Airline AA and its number is 1004. Airline AA matches with your details, shall I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: OK. Your booking has been done, have a safe journey.

USER: Thanks for booking.

ASSISTANT: Thanks for reaching us.