> In Italian we default to masculine unless there is specific knowledge
> that the subject is feminine for some reason. It also helps that we
> almost never have to write "he" or "she" explicitly because of our
> conjugation system, and our possessives are also gender-neutral with

Same for gl/pt/es afaik.
Nevertheless, let be restate (generalize) the question:

Is there any way to let transcript know personal (as in contact)
information regarding the user in order to taylor the gui texts to fit
that user?