You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anthony Carter.

ASSISTANT: What help is required from our agency?

USER: I want to cancel my recent reservation, due to heavy rainfall in New York.

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Carter, there is no reservation found on your name in our database.

USER: That's ok, thanks for your information.

ASSISTANT: You are welcome.