You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: My name is Patricia Gonzalez, can you please check for a flight having 0 connection to LAS?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my travelling dates are from 04/19 to 04/21.

ASSISTANT: Can you please share your source airport code?

USER: Sure, I would like to start my journey from my nearest airport location that is DEN.

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

USER: That's ok, thank you for the information.

ASSISTANT: You are most welcome.