Check it out here:
http://www.oddigytitanium.com/romhack/starocean2/trimmed/thank you, romjuice.

Everything's in there, from endings, to Cooking Master dialogue, to anything else you can imagine.
It's sorted by region. Each text block is a specific room in the game.
By sorted, I mean it's all kinda lumped together... XD The game stores entire regions' data in one file, so along with the dialogue, the sprite data and backgrounds would be as well.
Have fun.