What should the hotel do if it meets unreasonable guests?

There are no unreasonable guests, only service personnel who can't improvise. Why reason with him? As long as the guest reflects the problem, it is the hotel's fault (this is a principle, and it is also true for other guests). Even if he deliberately finds fault, he just thinks that the money spent is not worth it, or there is something that makes her dissatisfied. So, when you meet a guest who feels unreasonable, let her lose her temper. Don't try to convince her, she will get more and more excited. Your attitude is to listen, apologize, and then calm her down from her point of view according to the specific situation and the specific personality of the guest, for her own good.