[{"role": "user", "content": "I'm trying to write a letter to a friend in Italy and I want to make sure I can ask for the right supplies at the post office, can you tell me how to say 'I need an envelope' in Italian?"}, {"role": "assistant", "content": "To ask for an envelope in Italian, you can say 'Mi serve una busta.' This phrase directly translates to 'I need an envelope,' and it's exactly what you would use when requesting one at a post office or a store."}]