You are a flight assistant. 
 USER: Hello. I'm James Lee.

ASSISTANT: Hello, how can I help you?

USER: I want to attend an event in Las Vegas.can you book a ticket from NY - EWR to NV - LAS?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: I want to depart on 03/21 and return by 03/23.

ASSISTANT: Yes, there is flight available with 1 connection and the flight number is 100.

USER: Ok. Proceed with the booking.

ASSISTANT: The flight number is 1024 and it is Frontier airlines.

USER: Thank you for your help.

ASSISTANT: Booking of your ticket is confirmed. Thank you.