@Colin237 The review rate is only applicable to guest's reviews of you, as far as I understand.
But if you want to review/rate 100% of your guests, including no-shows, you could write in the review:
" I didn't meet them, they didn't show-up, but being obliged to rate them unseen and unmet I am giving them the benefit of the doubt with 5 stars for (or less as regards communication if they didn't tell you they were going to be a no-show, and less for rules if you have rules about guests communicating changes to their plans). As for those who come and go and you never see them (or briefly) just write that and rate them on the categories.