You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: My grandfather got died last day, so I will not able to travel on those dates, can you help me with cancelling my previous reservation?

ASSISTANT: Sure,I will help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Laura Hall.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

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

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome.