Today we are having a special meeting at the council. Master Ki-Adi-Mundee is graduating to a general. He is a master already, but he is becoming a general as well (like Master Obi-Won). For this he will get a diploma. (Becoming a general is a big event because it concerns the whole rebel force. Which would explain you not getting a diploma at your graduation, Siri) Needless to say, we will not search for Lea's new ship today because we are all going to this special event.
We are all supposed to bring snacks (and yes Siri): I will bring carrots!