[{"role": "user", "content": "I want to express my regret to someone who speaks Italian, could you please tell me how to say 'I've been selfish' in Italian?"}, {"role": "assistant", "content": "The translation of 'I've been selfish' in Italian is 'Sono stato un egoista.' If you are a female, you would say 'Sono stata un'egoista.'"}]