You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Melissa Jackson here. Please help me in out in booking the ticket from JFK to DTW.

ASSISTANT: Sure, I will be very happy to help you. Can you please provide me your travel dates?

USER: Sure, my trip dates are 03/15 and 03/17.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry Jackson, I did not find any flight available on your preferred journey dates.

USER: Its ok, no problem. Thank you for information about my request.

ASSISTANT: You are most welcome and have a nice day.