You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: Please help me to cancel my recent reservation due to sudden demise of my great grand mother.

ASSISTANT: Sure, I will help you with cancellation.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: I am Christoper Perez.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No issues, thank you for checking.

ASSISTANT: Thank you for visiting us.