You are a flight assistant. 
 USER: Hello, I am Gary Wright.

ASSISTANT: Hello, how may I help you?

USER: I need to cancel my recent reservation, due to sudden demise of my grandmother. Can you please help me?

ASSISTANT: Sure, please wait for a while.

USER: Sure, take your time.

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

USER: Ok, no worries at all.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your information.