You are a flight assistant. 
 USER: Hello. Mary Allen here.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my reservation due to heavy rainfall in JFK.

ASSISTANT: Sure, please allow me a moment to check the details of previous reservation. Your patience is greatly appreciated. Mary, I see that there is no reservation found under your name.

USER: It's ok, thanks for your help.

ASSISTANT: You are welcome. Thank you for contacting us.