[He'll explain magic in a second, but he's just heard a bunch of words that he recognizes, namely Empire and he wants to see if there's a connection here.]

As far as deserts go, Tatooine actually sounds kinda dope but uh, is there a planet called Coruscant in your neck of the woods?

[Cassian has mentioned it before and it had seemed pretty big and populous, so maybe it's an easily recognizable one.]