You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you please help me for booking from JFK to MCO?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My planned dates are on Dec 16 and 18.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connected flight.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a business class and return time is evening.

ASSISTANT: Can you please provide your name to proceed further?

USER: My name is David Wilson.

ASSISTANT: Sorry, there are no flights available at your request.

USER: Ok, thank you.

ASSISTANT: Thank you for contacting us, have a nice day.