According to the regulations and booking agreement of the cruise company, when you board the Three Gorges cruise ship, rooms will be allocated based on the room type at the time of booking. If there are more upscale rooms available temporarily on the cruise ship, the service staff will also recommend them to you, and you can consider paying the price difference for replacement. But if you have ordered a high-level room, it is not allowed to lower the level after boarding. There is a certain degree of randomness in the allocation of rooms of the same level on the cruise ship. If you are not satisfied with the location of the assigned room, you can negotiate with the front desk staff. If the room situation allows, priority will be given to replacement. If there is a floor price difference, an additional price difference must be paid.