I think I 'll need more detail so i understand what you mean. I'm not a builder so my understanding is that you pour screed in the dining room so...
I'm not sure what that means. When you say screed the ramp out, do you mean pour levelling compound in the dining room to the height of the ramp?
We recently knocked down a wall between kitchen and dinning room. The floors either side of where the wall are not flush to each other all the way...