For palace guests, they give a proper dining table in the room to eat your meals.
they give three options for u to choose, i’ve posted about it earlier u can try finding page 360-365 but other than that, u can still go to the palace bar counter to request for drinks to be sent to your room between 5-7pm daily. However, only can have beer, wine and hard liquor. Sadly cocktails are chargeable. Non alcoholic drinks available whole day. Milo, juices soya milk etc. My experience is different butler says different things. My butler insisted there was no Asahi (my aunt got it she was also in palace).