You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you today?

USER: Assist me in booking a flight ticket with fare 500 to visit some famous places at Las Vegas.

ASSISTANT: Sure, please share your journey dates.

USER: I want to start on 07/29 and return on 07/31.

ASSISTANT: May I know your journey airport codes?

USER: My origin is New York, LGA and destination is Las Vegas, LAS.

ASSISTANT: Ok, kindly mention your name.

USER: Timothy Evans is my name.

ASSISTANT: We are gleeful to inform you that, we found a flight in 1028 Hawaiian airline with a fare of 200.

USER: It's perfect, please proceed with my booking.

ASSISTANT: Sure, your ticket has been processed.

USER: Thank you for your support.

ASSISTANT: Thank you.