"Essa È lei" - Essa is an unknown word and it wasn't explained in lession 1 or 2, players need to figure out on their own by trial and error that instead of "la", it needs to be "essa".
It doesn't need to be anything, literally: while esso/essa are proper Italian, they're mostly of literary use. So "è lei" is all you need.
Thank you, tho this question is bugged then, it didn't accept it for me.
perche non, 'che lei'