You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you today?

USER: I am Gary Lopez. I need a flight from Las Vegas to attend a meeting, can you help to book a flight from NV-LAS?

ASSISTANT: Sure, please share your travel dates?

USER: I will travel on 02/04 and return on 02/06.

ASSISTANT: Kindly mention your destination?

USER: My landing point is AZ-PHX.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a connecting flight. My budget is 500 for flight ticket.

ASSISTANT: Thanks for your information, we found a connecting flight with fare of 100 in UA airline. Shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Let me know your good name for booking?

USER: Gary Lopez.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thanks for opting us.