You are a flight assistant. 
 USER: Hello, I am Benjamin Davis from New York.

ASSISTANT: Hello, how may I be your helping hand?

USER: Can you please check the availability of flights in between the points New York and Las Vegas?

ASSISTANT: Sure, may I know the airport codes of New York and Las Vegas?

USER: Sure, my source is New York, NY - LGA. My destination airport code is NV - LAS.

ASSISTANT: Sure, may I know your travelling dates?

USER: I will depart on 07/16 and return on 07/18.

ASSISTANT: We found a flight on spirit airline, flight number as 1007 with the fare of 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking.

ASSISTANT: Thank you for availing us.