You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Emma Hall. I would like to visit New York to meet my cousin, can you please help me to book a flight ticket from CLT to JFK?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travel dates are Feb 15 and Feb 17.

ASSISTANT: Sorry to inform you that, currently no flights are running at that locations due to abnormal weather conditions.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome.