Its just scrambling the main word and spelling backwards together with of course ia and ya
Explanation:
Hello how are you doing today?
I'm doing good how are you?
I'm doing good too. Do you want to go get something to eat with me?
No, thank you. I'm busy right now but thanks for the offer.
This is how it looks like in Spanish:
¿Hola cómo estás hoy?
Estoy bien, ¿cómo estás?
Yo también estoy bien. ¿Quieres ir a buscar algo para comer conmigo?
No gracias estoy ocupado ahora pero gracias por la oferta.
The answer is seafloor spreading and subduction.
Hope this ain't too late (this is the PLATO answer)