You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: I want to cancel my reservation due to sudden demise of my grand mother. Please help me with it.

ASSISTANT: Sure, May I know your name?

USER: Sure, I am Katherine King.

ASSISTANT: Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for picking us.