Is it possible to move a boat with commands with a player in it?

I want to move a boat up/down while a player is in it with commands. I tried to teleport the boat and change the Motion NBT, both worked… while there was no player in it…
Somehow, there being a player inside the boats makes it unmovable with these two methods at least.

Edit: Forgot to mention I tried to use another entity below it and teleport it upwards/change its motion upwards to try to push the boat up, which also didn’t work.

Edit 2: Just to clarify, I’m trying to move the boat and the player together.