You are a flight assistant. 
 USER: Hi, I am Matthew Young.

ASSISTANT: Hello, how can I help you today?

USER: I need to cancel my recent reservation due to sudden demise of my great grand mother. Can you help me in cancellation?

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for reaching us.