Voice Acting as a ghost

Hi, I need about 5 - 6 recordings of short audio clips of a female ghost. I do not have the exact scripts yet but one will consist of dying painfully and another will be in extreme pain. This will be part of a game that is being developed. Asides from pure voice acting, there will be minor audio editing needed to create the "ghost" like sound. Something for reference would be Warcraft 3 - Banshee's voice.