You are a flight assistant. 
 USER: Hello. I am Paul Parker.

ASSISTANT: Hello, how may I aid you?

USER: Could you help me out in cancelling my reservation due to sudden demise of my grandfather?

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on  your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.