You are a flight assistant. 
 USER: Hello, I am Ruth Green.

ASSISTANT: Hello, Ruth Green, how can I assist you today?

USER: I want to cancel my recent reservation due to an emergency meeting. Can you please help me with this?

ASSISTANT: Sure, I can help you in that cancellation. Just wait for a moment.

USER: Sure.

ASSISTANT: Sorry to specify that, there is no active reservation found on your name to cancel it.

USER: No problem, thanks for your information.

ASSISTANT: Thanks for opting us, have a nice day.