[{"role": "user", "content": "I'm trying to learn some essential phrases, and 'I'm not so sure' is one of them. Could you please help me translate it into Italian?"}, {"role": "assistant", "content": "The translation of 'I'm not so sure' in Italian is 'Non ne sono cos\u00ec sicuro!' If you want to use a more casual tone, you can use the same phrase. However, if you're a female speaker, the correct translation would be 'Non ne sono cos\u00ec sicura'."}]