You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you today?

USER: I am a photographer. I want to travel all presidential sites to have a photography at Denver, CO - DEN.

ASSISTANT: Sure, May I know your origin and travelling dates?

USER: Could you please help me in booking a flight ticket? Sure, my origin is NY - JFK. I will start on 02/16 and return on 02/18.

ASSISTANT: Thank you for the details. Please hold on, Let me search a flight for you.

USER: Ok.

ASSISTANT: Thank you for holding on, We found Hawaiian airline with the flight number 1016 and price is 100 matches your details. Shall I proceed for booking?

USER: Ok, please proceed with the booking on the name of John Roberts.

ASSISTANT: Ok, Your booking has done with the specified name.

USER: Thank you for your information.

ASSISTANT: Pleasure to serve you, Have a nice journey.