[{"role": "user", "content": "I'm trying to learn Italian and I came across the phrase \"You're so old.\" Can you help me translate it into Italian?"}, {"role": "assistant", "content": "Certo, the translation of the phrase \"You're so old.\" in Italian is \"Lei \u00e8 cos\u00ec anziano\" or in a more informal way \"Tu sei cos\u00ec vecchio\". However, if you want to use the formal \"Lei\", you might want to consider using the correct agreement \"anziano\" is masculine, so if the subject is a female, you would use \"anziana\". But if you don't know the gender of the subject or want to use a more universal sentence, you can use \"Tu sei cos\u00ec vecchio\" or \"Tu sei cos\u00ec vecchia\". If you want to use the formal \"Lei\", then is correct to say \"Lei \u00e8 cos\u00ec anziano\" or \"Lei \u00e8 cos\u00ec anziana\". Additionally, \"vecchio\" is more common than \"anziano\" in informal contexts."}]