[Not knowing those circumstances - and this is where it becomes patently obvious that Tali still doesn't like perusing files - she's perfectly free to assume that he's just happy to be in the mortal realm, or really likes his master (she'll have to get used to that word sooner or later if she's going to keep talking to Sebastian), or... Well, either way, her assumptions aren't particularly bad.]

It does seem quite close to what they already do - make contracts and bring people from... I don't really know if it's other realms or other dimensions or something else. They bring people from elsewhere.

[Pause.] But you make contracts yourself anyway?

[She's honestly not sure what she expected.]