If they ping you to move and you say yes but they decide not to move, it means your friendship level with them might be too low and it's making them not want to move. You'll have to work on building your friendship level.
Also, for the pwp you don't want empty pockets, as villagers will try and sell you things. Go with a pocket full of flowers (they don't buy those) and a low number of bells (under 1,000). This eliminates villagers trying to buy and sell with you. This way your pings will be a little bit more limited, though you can't stop pings for greetings, move-outs, or wanting house item suggestions.