You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am John Evans, want to travel from LAX to LAS. Please help me in booking my ticket.

ASSISTANT: Sure, on which dates you are planning to travel?

USER: Sure., my trip dates are from 11/08 to 11/10. Please check for the direct flight.

ASSISTANT: Sorry, there is no direct flights available.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.