You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Cynthia Lewis. I need to attend a my brother marriage at DTW, can you please help me to book a flight ticket from JFK?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my travel dates are 02/28 and 03/01.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, I will wait for your response.

ASSISTANT: Cynthia, I am sorry to inform you that there is no flight available at your requested dates.

USER: It's ok, no more issues. Thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.