What the model knows and doesn't

The model only knows what it read while it was being taught, plus whatever you paste into the conversation. It does not know your inbox, your company's records, or what a government database says today. Those things were never in the lesson, and they are not sitting in the chat unless someone puts them there.

People call that pile of teaching 'memory,' which is a bit grand. It is more like a book that has already been printed. You can stick a sticky note in the page (that is the chat). You cannot ask the book what happened this morning unless you go get this morning and put it on the sticky note.

That is why a fluent answer about your stuff can still be a guess. The model is good at sounding like it has been in the room. Being in the room is a different job, and the next lessons are about the ways people try to hire it for that job.