You don't need a trigger for that.
PHP Code:
function onPlayerChats() {
if (player.chat == "Testdestination"){
player.setLevel2("overworld_bw061.nw", 15.5, 15};
}
}
//#CLIENTSIDE
function onCreated(){
setcoloreffect(1,1,1,0.01);
setimgpart("block.png",0,0,32,16);
}