Hello.
user
Hello, how can I assist you today?
assistant
 I am Jerry Garcia want to travel to NV-LAS to attend a live concert. Can you book  a ticket from NY-LGA?
user
Sure, may I know your planned travel dates?
assistant
 My planned dates are 12/31 and 01/02.
user
Do you need a halt in between your journey?
assistant
 I need a connecting flight.
user
We are glad to say that, we found an airline: UA, flight number: 1010 and price is 200. Shall I proceed to booking?
assistant
OK, you can proceed.
user
Your flight ticket has been reserved.
assistant
 Thank you for booking.
user
Thank you for opting us.
assistant