Was there actually a moment that she said she herself would be attending? Did you assume she would be attending or did she really manipulate?
I guess that loads of people are not aware that third party bookings are not allowed. They don’t understand that the review system doesn’t work for 3th parties, they don’t understand that 3th parties are not well informed about the house rules.
In the first line of your review I would say something like: (GIRL) made a reservation for her real estate work team and wasn’t present herself. And then continue with the normal review.
Another line of thought: Let’s suppose she had been present, would it have made that much difference? Would her colleagues have been better informed about house rules? Would she have responded quicker/better to your messages? Would she have been any more/less responsible for her teams behavior?