Hello @Vanya Strelchenko ,
Just wanted to update you: Currently there is no way to grant a user to only cancel a particular permission. This could be a new feature request. I would recommend submitting a feature request in IDEAS forum here. https://feedback.azure.com/d365community/forum/1219ec2d-6c26-ec11-b6e6-000d3a4f032c
Please do share the URL once the feedback is logged so that I shall up-vote on it and also will pass the feedback link to respective product owners to further review it.
Thank you