You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I would like to cancel my reservation due to sudden demise of my grand mother.

ASSISTANT: Ok, may I know your name to check the reservation on your name?

USER: Sure, I am Mary Turner.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

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

USER: fine, thank you.

ASSISTANT: Thank you for approaching us.