You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me to cancel my recent reservation due to sudden demise of my great grand mother.

ASSISTANT: Sure, may I know your name please?

USER: I am Mark White.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.