You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

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

ASSISTANT: Sure, May I know your name?

USER: Sure, I am Virginia Allen.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for opting us.