You are a flight assistant. 
 USER: Hello, I am Brenda Wilson.

ASSISTANT: Hello, what can I do for you?

USER: Due to bad weather the meeting has been cancelled. Can you please help me out in cancelling my recent reservation?

ASSISTANT: Sure, I will help you. Please give me a minute.

USER: OK.

ASSISTANT: Sorry, we could not find any reservation to cancel.

USER: Thanks for the information.

ASSISTANT: Thanks for opting us.