[{"role": "user", "content": "I'm writing a story about a character who has a past in law enforcement and I'd like to make the dialogue authentic, so can you help me translate the sentence 'I used to be a cop' into Italian?"}, {"role": "assistant", "content": "The translation of 'I used to be a cop' in Italian is 'Una volta io ero un poliziotto.' This should help you create an authentic dialogue for your character."}]