She doesn't know what a "flat" is, but it's likely a place to sleep. She lets it go when Alistair says that he's not gotten any coaching from Zevran, and laughs, but it's a fairly delighted, impressed sound. "No offense intended, I promise; just a bit surprised." Perhaps this Dani girl had taught him a few things, even if they hadn't done anything. She's curious enough to want to meet the girl already.