Please do not use the word “Cancel” in system dialogues like “Do you want to cancel this session?” (or similar) or “Cancel your subscription”.
This is confusing because it reuses the word “cancel” from the message, subliminally suggesting that this is the affirmative response when the user should be understanding it as the negative response.
This is simple HIG stuff. Please use the word “No” instead and use “Cancel” only when it’s unmistakeably and explicitly applicable.
Thanks.