Or if you don't have a save game from before entering the academy and speaking with Handmainden, you can also save your game in a new slot and use tk102's KSE (
http://www.starwarsknights.com/tools.php) to set the global variable "262TEL_Atton_Talk" to 1
Edit: there is a 3rd solution which requires to reload a savegame from before entering the academy and chosing an answer other than "All right we mean no harm" when speaking to handmaiden: the dialogue file is suddenly cut after this entry which causes the bug.