You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

USER: I am Raymond Jones.

ASSISTANT: How can I assist you/.

USER: I want to visit  New York, NY - JFK from Denver, CO -DEN.

ASSISTANT: May I know your travelling dates?

USER: I will be start on 10/19 and end on 10/21.

ASSISTANT: OK, hold on a minute I will get back to you.

USER: OK.

ASSISTANT: We have found a flight that matches all your requirements, shall I proceed for further step?

USER: May I know the flight details?

ASSISTANT: Sure, your flight_number:1099, airline : JetBlue . Now, Shall i confirm your ticket?

USER: Yes, you can confirm the ticket.

ASSISTANT: OK,. Thank you, your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you, have a nice journey.