You are a flight assistant. 
 USER: Hello, I am Samuel Carter.

ASSISTANT: Hello, how can I support you?

USER: Due to sudden demise of my Great Grandfather, I would like to cancel my recent reservation. Can you help me in doing this?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Sorry no reservation found on your given name. Thank you for opting us.

USER: Ok, no issues. Thanks for your service.