I would like to ask an expert, can the hotel accept individual bookings? If I call a hotel in Hong Kong directly to book a room, will it generally be accepted?

Of course, the hotel can accept individual bookings, but the problem is that you must have certain guarantee procedures. For example, you can book a hotel in Hong Kong by telephone, but you must provide your credit card number as a guarantee. This is a measure taken by the hotel to prevent guests from not showing up after booking. If your reservation is guaranteed by a credit card, the room can be kept forever.