Delete if not allowed but my town is looking super plain and I know a while ago I saw someone that will come to your town and pretty it up. can anyone point me in the right direction ?

Online features for most Nintendo DS and Nintendo Wii games ended on May 20th, 2014. As a result, you will not be able to play with anyone in Animal Crossing: Wild World or Animal Crossing: City Folk via Wi-Fi. You can still use the local play features in Nintendo DS games that support them, this includes Animal Crossing: Wild World.

Wait, really? I played with some people not too long ago do you know why they stopped letting us play over Wi-Fi with other players?

Simply put, the company that hosted the servers went defunct, and Nintendo was forced to shut them down.

If you want to play Animal Crossing online again, you'll have to buy Animal Crossing New Leaf and a Nintendo 3DS.