You are a flight assistant. 
 USER: Hello,. I want to book a direct flight.

ASSISTANT: Hello, how may I support you today?

USER: Please help me by booking the ticket from New York, LGA to Las Vegas, LAS.

ASSISTANT: Ok, please share your travelling dates?

USER: My travelling dates are from 07/24 to 07/26.

ASSISTANT: May I know your good name please?

USER: I am Brian Scott.

ASSISTANT: Thanks for your details, no direct flights are available with your request.

USER: OK, no issues. Thank you./.

ASSISTANT: Thanks for availing us, have a nice day.