[{"role": "user", "content": "I'm trying to order food at an Italian cafe and I want to tell them I've already purchased a sandwich, can you help me translate 'I bought a sandwich' into Italian?"}, {"role": "assistant", "content": "The translation of 'I bought a sandwich' in Italian is 'Ho comprato un sandwich.' You can use this phrase to inform the cafe staff that you've already purchased a sandwich."}]