You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Michael Lopez from New York. I have to attend a business meeting in Las Vegas, can you please book a flight ticket for me?

ASSISTANT: May I know your preferred travel dates please?

USER: Thank you for your positive response, I want to take off on 05/15 and please confirm my return ticket also on 05/17.

ASSISTANT: Please share your desired airport codes.

USER: I would like to fly from JFK airport and destination airport is LAS because these two airports are very convenient for me to travel.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Ok, please make sure that I want a direct flight.

ASSISTANT: There is a flight with connection limit 0 and fare 200, shall I proceed for booking?

USER: That's perfect, please proceed.

ASSISTANT: Your ticket is booked, flight number 1008.

USER: Thank you for your help in booking flight ticket.

ASSISTANT: Thank you for opting us. Have a nice day.