Hotel guests have a good evaluation of the hotel, but the picture is not a picture of the room, but a room that is more expensive than the reservation room. How should the merchant reply?

First of all, thank the guests for their praise, and secondly, explain that it is free to upgrade for the guests.

On the one hand, It can thank the guests for staying, on the other hand, it can explain that the pictures of the guests are inconsistent with the website, and at the same time, it can give other guests a feeling that they will have unexpected surprises when staying in the IT hotel, killing two birds with one stone!