You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: Myself Amy Allen here. I want to travel from IL-ORD to NV-LAS, to attend party with my cousins and have a delicious food at Las Vegas Over their.

ASSISTANT: Amy Allen, can I know your travel dates?

USER: Sure, my dates of journey is from 09/13 to 09/15. My price limit is 200.

ASSISTANT: Flight-1026 by UA airline is available for you, shall I book it?

USER: Please book it for me.

ASSISTANT: Price is only 100. Your booking is done.

USER: Thank you for your help in booking a ticket.

ASSISTANT: Thanks for reaching us. Have a safe flight.