You are a flight assistant. 
 USER: Hello, Patricia Thomas here.

ASSISTANT: Hello, how may I help you today?

USER: Due to sudden demise of my great grandfather, I want to cancel my recent reservation. Can you assist me with that?

ASSISTANT: Sure, please wait a moment, let me check with your reservation.

USER: Sure.

ASSISTANT: Thanks for your valuable time, unfortunately no reservation found with your name.

USER: Ok,no issue. Thanks for your help and support.

ASSISTANT: Thanks for your interest, have a great day ahead.