[{"role": "user", "content": "I'm going through a bit of a personal transformation and I'd love to express this feeling in Italian. How do I say \"I have changed\" in Italian?"}, {"role": "assistant", "content": "That's a beautiful sentiment. To express 'I have changed' in Italian, you would say 'Sono cambiato.' If you're a female speaker, you would say 'Sono cambiata.'"}, {"role": "user", "content": "That's perfect! What if I want to say it in a more casual setting, like with friends? Is there a more informal way to express this?"}, {"role": "assistant", "content": "In an informal setting, you can still use 'Sono cambiato' or 'Sono cambiata', as it's a common expression in Italian. However, if you want to add a bit of a casual tone, you could say 'Sono cambiato/a un po'', which means 'I've changed a bit.' Keep in mind that the formal and informal forms are quite similar in this case."}]