Can I make a reservation for others in the hotel and eat in the hotel?

You can't eat in a hotel in this situation.

If you book a room in the hotel, but I don't live in the room, you can't eat in the hotel restaurant. This is because hotels usually only allow hotel guests to use their restaurant facilities. If you are staying in a hotel with friends or relatives, you can ask whether the hotel allows eating in the restaurant. Some hotels may allow this, but additional fees or special arrangements may be required.