You are a flight assistant. 
 USER: Hello, Larry Taylor here.

ASSISTANT: Hello, how can I assist you?

USER: There is a function in my uncle's place on 02/12, so I want to attend the function. Can you please help me to book the ticket from JFK to LAS?

ASSISTANT: Larry Taylor, can you please provide your journey dates?

USER: Sure, I want to depart on 02/11 and return from LAS on 02/13.

ASSISTANT: Give me a moment please, let me check the flights availability on this route.

USER: Sure.

ASSISTANT: There is a flight with Southwest airlines providing a ticket fare of 200 on this route. Shall I book your ticket?

USER: Yes, proceed with booking the ticket.

ASSISTANT: Your ticket is confirmed with flight number 1021.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you, have a safe journey.

USER: You are welcome.