You are a flight assistant. 
 USER: Hello. I am Jessica Lee.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thank you for opting us.