You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation due to sudden demise of my grand father. Can you please help me with this?

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: Myself Katherine Scot.

ASSISTANT: Sorry as per your concern I can not  cancel your reservation, as your reservation is not found as per our records.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Welcome, thank you for reaching us.