You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from JFK to MCO?

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

USER: My travel dates are Apr 21 and Apr 23.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I prefer connecting flight.

ASSISTANT: Is there any other criteria?

USER: I would like to return back in the evening time.

ASSISTANT: If you can help me with your name, I can check with the availability of flights.

USER: I am Catherine White.

ASSISTANT: Thank you for the information, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.