You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  Can you please help me for booking from DEN to LAS?

ASSISTANT: Sure, please share your planned travel dates?

USER: My planned dates are on Feb 28 and return on March 01.

ASSISTANT: Do you have any connection limit?

USER: I need a stopover.

ASSISTANT: Can I have your name please?

USER: Paul Scott here.

ASSISTANT: Sorry, no flights found with your given details.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.