If you create a free trial account, once the 14 day period ends the system will just cease to operate - so there is nothing to cancel or delete. At the bottom of any welcome email you receive there is a link at the bottom to unsubscribe to emails - you just need to click on the unsubscribe link.
While we understand that you may just not like a system, if there are any features or functionality that you feel is missing from the system and preventing you from choosing KennelBooker - please reach out to our support team as there are a lot of features that can be turned on from the settings area, or if we can we are always looking to add to the features and services we offer our customers.