You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I had done my flight ticket booking last Monday to visit my grand father but accidentally my grand father visited our house. So, I want to cancel my flight ticket reservation.

ASSISTANT: Ok, wait for a moment. Sorry, there is no previous reservation found on your name. May I know your good name please?

USER: Ok, not an issue. I am Stephanie Hernandez.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your service.