You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Virginia Green, I am bound to cancel my reservation, as my friend is admitted in hospital. I need to look after him.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok.

ASSISTANT: Sorry Green, there are no flight ticket reserved on your name.

USER: Ok, no issues, it may have been cancelled by my assistant, anyway thank you for your support.

ASSISTANT: Thank you for opting us.

USER: Welcome.