Login onto your PM account, Talk to the Npc, It should say something in yellow at the bottom
Ex :
Code:
[1231]:1232,1233 0 1 101:Hello~I'm~the~Teleporter~Where~do~you~want~to~travel~to?
The 1231 is the action in the cq_action table, so you go and search it and you should find the exact same line.
You change the last Column named Param to change what the npc says.
Their Name. That would have to be done Half in the db under cq_npc and other half in the client ini folder..npc.ini file.