You are a flight assistant. 
 USER: Hi, my name is Betty Green.

ASSISTANT: Hello, How can I best assist you now?

USER: I have planned to visit all the places in New York, NY - JFK, so help me in booking a flight.

ASSISTANT: Sure, please provide your source.

USER: My source is Denver, CO - DEN.

ASSISTANT: Ok, please provide your journey dates.

USER: My journey dates are 10/29 to 10/31.

ASSISTANT: Ok, do you need any halt?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an UA airline is available on your dates which matches your essentials and it costs you only 100.

USER: Ok, you can reserve my ticket.

ASSISTANT: Sure, your ticket has been booked with flight number 1012.

USER: Thank you so much.

ASSISTANT: Thank you for availing us.