[{"role": "user", "content": "I'm trying to learn Italian and I want to express my curiosity about someone's absence, can you help me translate the sentence 'Why didn't you go?' into Italian?"}, {"role": "assistant", "content": "The translation of 'Why didn't you go?' into Italian is 'Perch\u00e9 non siete andate?' if you're addressing a female, or 'Perch\u00e9 non siete andati?' if you're addressing a male. If you're using the informal form, it would be 'Perch\u00e9 non sei andata?' for a female and 'Perch\u00e9 non sei andato?' for a male."}, {"role": "user", "content": "That's really helpful, thank you! What's the difference between the formal and informal forms in Italian?"}, {"role": "assistant", "content": "In Italian, the formal form is used when speaking to someone you don't know well, someone older than you, or someone you want to show respect to. The informal form is used with friends, family, or people you're familiar with. So, 'Perch\u00e9 non siete andate?' or 'Perch\u00e9 non siete andati?' is formal, while 'Perch\u00e9 non sei andata?' or 'Perch\u00e9 non sei andato?' is informal."}]