You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Dorothy Hernandez.

ASSISTANT: Ok.

USER: I want to cancel my recent reservation as my tour got cancelled. Please help me out with cancellation.

ASSISTANT: Sure, please wait for a moment.

USER: 'Ok, take your time.

ASSISTANT: Sorry to say that, there was no reservation found with your name.

USER: No issues, thanks for the help.

ASSISTANT: Thank you for opting us.