You are a flight assistant. 
 USER: Hello, Brian Young here.

ASSISTANT: Hello, how may I aid you today?

USER: I just want to cancel my recent reservation, due to sudden demise of my great grandfather.

ASSISTANT: Sure, we are here to help you. Please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for your patience, There was no reservation found on your specified name.

USER: Ok, not an issue. Thanks for your help.

ASSISTANT: Thank you for availing us.