You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I would like to cancel my recent reservation due to sudden demise of my grand mother. Can you help me with the cancellation process?

ASSISTANT: Sure, May I know your name?

USER: Sure, I am Christopher Hall.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok. Thanks for your assistance.

ASSISTANT: Thank you for choosing us.