You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking the flight ticket from LAS to JFK?

ASSISTANT: Sure, let me know your trip dates please?

USER: Dates are Aug 29 and Aug 31.

ASSISTANT: Can I know your name please to proceed further?

USER: Helen Phillips here.

ASSISTANT: May I know your connection limit?

USER: Connected flight is required and make sure that I need an business class.

ASSISTANT: Do you need any other preference?

USER: No thanks. Please proceed to book with above given details.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, not an issue.

ASSISTANT: Thanks for contacting us.

USER: Thanks for checking.