You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Ronald Scott. I want to book a flight ticket from DEN to LAS to attend a business meeting with my business share holders. Can you help me with booking?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Thank you. I will fly on May 22 and arrival on May 24.

ASSISTANT: Please wait for a moment, I will check the availability. Do you have any limitations? Please mention in meanwhile.

USER: I need a connecting flight.

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

USER: Ok, no issues.