You are a flight assistant. 
 USER: Hello,. I am Rebecca Davis.

ASSISTANT: Hello, how may I amend you?

USER: I want to cancel my recent reservation as my tour got cancelled.

ASSISTANT: Sure, I can help you. Let me check the data base and revert you.

USER: Ok.

ASSISTANT: Thanks for waiting. We did not find any reservation on your name.

USER: No issues. Thank you.

ASSISTANT: Thank you for opting us.