What did you say to an ailing family member in hospice?

I tried today to think of the right things to say to my dad .he's been in hospice two days and is already declining. He spoke to me, but barely. Kept falling back to sleep..the cancer is aggressive. It was painstaking but I wanted to visit and be next to him. He yelled at me three times about no food or water. He's not had any drink in a whole day. I don't understand why hospice wasn't there on a Sunday to try to make him drink occasionally.

But I told him at the end of the visit when he looked at me a whole minute, that he was a trooper during this trying time and that I'd always be with him and he'd always be with me. I didn't know what else to say. I meant it fully. I didn't bring up Heaven. But he then replied as I was leaving , Be careful, love you. 😢
When I got to my car I was sobbing.

That could be the last time he talks to me.Im grateful he said it. I'm going tomorrow too and hope to talk a bit more but each day he's slightly worse. What did you say to a hospice patient?