Hotel front desk guests are unreasonable, what should I do to complain?

Let the guest complain, as long as you have done nothing wrong, the guest complaint will not be established. After the guest complains, the hotel will investigate and you have the right to protest. So don't worry about unreasonable complaints from guests. However, since the hotel serves the guests, the hotel should have the patience to explain the misunderstanding to the guests. Of course, it is up to the guests to decide whether to listen or not.