You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Welcome to flight booking agency.

USER: Raymond Allen here.

ASSISTANT: How can I guide you for today?

USER: I want to open my new Raymond Shop in Las Vegas. Can you please book my ticket from ORD to LAS?

ASSISTANT: Sure, can you please share on what dates you are willing travel?

USER: I want to travel in the end of November from 1/25 to 11/27. Please make sure this, I want a direct flight.

ASSISTANT: Sorry, there is no flight available with your requested dates on this route.

USER: It's ok.

ASSISTANT: Thank you for approaching us.

USER: Anyways, thank you for searching.