Hello. Katherine Campbell here.
Hello, how can I assist you for the day?
I have made my reservation earlier to go for a car racing at Boston, but suddenly  I meet with an injury while practicing. Help me in cancelling my recent reservation.
Sure, I am here to help you.
Thank you.
Please wait for a moment.
Ok.
Sorry, we found no reservation on your given name.
That's fine, I think it has been cancelled all ready.
Thank you for reaching us.