How about?
=IF(ISERROR(MATCH(D2,E$2:E$188,0)),IF(D2="OOB","OOB","Moved"),IF(AND(LEFT(E2,1)<>"D",LEFT(E2,3)<>"C-3"),"Wrong Bldg/Flr",IF(D2<>E2,"Room Change","")))copied down.
Note there are a couple of #N/A errors produced. This is because the D column found a match in column E, but there is...