You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I helpful for you with your flight tcikets?

USER: I'm Larry Hall here. I want to travel from CA-LAX to NV-LAS, to meet my friend at Las Vegas.

ASSISTANT: Ok. Can I know your travel dates?

USER: My preferable dates of travel is from 04/26 to 04/28. My connection limit is 0.

ASSISTANT: Sorry Larry, there is no flight for your location.

USER: Ok, that's fine.

ASSISTANT: Thank you to reach us.

USER: Thank you.