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

ASSISTANT: Hello, how may I aid you today?

USER: Due to sudden demise of my grandfather, I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, I am here to help you with that cancel reservation.

USER: Thank you.

ASSISTANT: Please hold for a moment, let me check your previous reservation status.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry to tell you that, there is no active reservation found with your name in our reservation list to cancel it.

USER: No issues, thank you for your response.

ASSISTANT: Thank you for reaching us, have a nice day.