[{"role": "user", "content": "I'm trying to learn proper etiquette in Italian and I'm stuck on this sentence. How would you say \"Don't use my pen\" in Italian?"}, {"role": "assistant", "content": "That's a great phrase to know! In Italian, you can say \"Non usare la mia penna\" to convey the same message."}, {"role": "user", "content": "Non usare la mia penna? That sounds correct. Is there a more formal way of saying it?"}, {"role": "assistant", "content": "Actually, \"Non usare la mia penna\" is a polite way to say it. If you want to make it even more formal, you can use the formal \"you\" (Lei) and say \"Non usi la mia penna\"."}]