This is great. I encountered a few bugs, but overall this was just fun to use.

I particularly liked getting this prompt a few volleys in. The AI decided she was done with speaking Spanish... except, not really.

> her (translated): Wow, I'm sorry, I don't understand Spanish that well. Do you mind if we speak in English?

> me (translated): No that's fine, let's speak in English please.

> her: Me llamo Sarah y soy de Estados Unidos. Tengo dos gatos a los que quiero mucho. En mi tiempo libre, me gusta leer y hacer senderismo. ¿Y tú?