You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I assist you for the day?

USER: I am Margret Perez. I want to cancel my reservation due to bad weather conditions, help me in cancelling my reservation.

ASSISTANT: Sure, I am hear to serve you. Please wait for a moment.

USER: Sure.

ASSISTANT: We found no reservation on your name.

USER: Its ok, thank you for your help.

ASSISTANT: Thank you, for choosing us.hope to serve you better next time.