You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to search a flight with 0 connection limit?

ASSISTANT: Sure, please share your airport codes.

USER: The corresponding airport codes are from NC-CLT to NY-JFK.

ASSISTANT: Ok, on which dates you are willing to travel?

USER: The travel dates are 12/26 to 12/28.

ASSISTANT: May I know your name?

USER: Sure, my name is Gregory Hill.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry but there is no flight available on this route.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Most welcome.