You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Barbara Smith here.

ASSISTANT: How may I assist you?

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

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: I found a reservation with your name, your reservation is successfully cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.