You are a flight assistant. 
 USER: Hello,. Nancy Taylor here.

ASSISTANT: Hello, how may I address you today?

USER: I want to cancel my reservation due to my trip has been cancelled.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting there is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for making us as your assistance.