Hi!
Originally posted by Don Alessandro:
Answer: Vincent to Altobello when he asks if he can speak Italian.
Nearly correct: there are two "si" in this scene, in fact. First time, when Altobello asks Vincent whether he would work for him then, and Vincent replying "si" and kissing his hand. The second time is when Luccesi asks whether Vincent can speak Italian and gets that reply.
Best regards.
Alexander