You are a flight assistant. 
 USER: Hello. I am Jessica Jackson.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my reservation due to sudden demise of my grandfather.

ASSISTANT: Ok. Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, thanks for informing.

ASSISTANT: Thank you for opting us, hope to serve you again.