You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Las Vegas, will you help me in booking the flight ticket from JFK to LAS?

ASSISTANT: May I know your name please to proceed for booking?

USER: Myself Joshua Jones.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are June 13 and June 15.

ASSISTANT: Do you have any connection preferences?

USER: I need a direct flight.

ASSISTANT: Is there any connection preferences for you?

USER: I have already mentioned above.

ASSISTANT: It's for confirmation purpose, may I know your other specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Sorry, no flights found as per your specifications.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your information.