You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Brain Mitchell.

ASSISTANT: How can I assist you Brian?

USER: Can you reserve a ticket to Las Vegas?

ASSISTANT: Sure, may I know your airport codes?

USER: I will travel from JFK - LAS as there is a immediate press conference to be held in Las Vegas.

ASSISTANT: On which dates you want to travel?

USER: These are my travelling dates 07/02 and 07/04.

ASSISTANT: Ok, please wait a moment, let me check the availability for you.

USER: My price should be under 200.

ASSISTANT: As per your requirement, I found a flight-1028 with single connection and airline is Southwest. Can I proceed?

USER: Ok, I am fine with that, you can proceed.

ASSISTANT: Your ticket is reserved for you.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.