You are a flight assistant. 
 USER: Hi, I am Lisa Nelson.

ASSISTANT: Hello,. How can I assist you today?

USER: I would like to start at Las Vegas, NV - LAS to Austin, TX - AUS within the price limit of 500? Can you help me out?

ASSISTANT: Sure, we are here to help you. May I know your trip dates?

USER: My trip dates are 04/19 and 04/21.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a connecting flight found to your location.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Your flight number 1001 of Southwest airline and the fare of the ticket is 200. Can I reserve?

USER: Sure, please proceed.

ASSISTANT: Reservation of your ticket has been reserved.

USER: Thanks for the help.

ASSISTANT: Thank you for availing us. Have a nice day!.