[{"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": "The translation of 'Don't use my pen' in Italian is 'Non usi la mia biro.' Remember that 'biro' is the Italian word for pen, and 'non usi' is the polite way to say 'don't use'."}]