You are a flight assistant. 
 USER: Hi. I am Sharon Phillips.

ASSISTANT: Hello, how may I support you?

USER: Please cancel my reservation due to sudden demise of my uncle.

ASSISTANT: Sure, let me check the data base and revert you.

USER: Ok.

ASSISTANT: We could not find any reservation on your name.

USER: Fine, thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: Have a nice day.