"Conveniently appearing new arrival."

"It's a pleasure. I'm Luzzu, and that was Gatta. We both come from Besaid, and have known Kaede since she was a child."

"Oh, cool!" he responds. "Nice to meet you too."

"Why do you need to fight anyway? Aren't those Al Bhed machina so good and powerful?"

"– I mean, technology is not infallible as I know it, but I have no idea what the standards are around here for 'ancient tech'."

"These ancient machina are from before the Machina War and Sin, so they should be very powerful, but the Al Bhed need some time to get them ready. Our job is to keep Sin at bay until they are."

Wakka grunts and glares at Luzzu.

"Depending on what they're doing to get the devices ready, I could be helpful? I have the ability to alter things in an area, like the material or turning air into something, removing pieces, changing temperatures… things like that…"

"That... could be helpful, yes. I am not sure, the Al Bhed are best equipped to answer these questions."

"Should I go interrupt one of them, then?"

"That might be welcome, yes."

So he goes to look for an Al Bhed to interrupt!

Up the lift to the top of the mushroom rocks where HQ is, there are several Al Bhed fussing around with the machina and making sure everything's ready.

Well that cannon doesn't look like it's going to do much but okay!

He goes towards them, lands, says, "Hi there!"

The two Al Bhed around one of those cannons look at him. "You speak Al Bhed?"

"I'm magic, it's one of the convenient perks. I can change things in an area! Melt stuff, turn stuff into air and vice versa, duplicate or shrink things, might be of help in– all this."

"Can you do it against Sin?"

"Limitations on magical constructs, unfortunately. So no."

"Then it's no use, you should let the machina do the work."

"… Yes, I was planning on that, but the question was whether I could help you out with setting up the machina, depending on what they require to get properly functional or whatever."

"Oh! Yes, you should talk to the engineers at the laser." He gestures out towards the shore, where a twenty-metre-tall pointy thing can be discerned.

He goes towards the twenty-meter-tall pointy thing. Looks for engineers.

There are engineers swarming it!

Any who don't look super busy right now, or who look less busy than the others? Ones he could possibly interrupt?

No, not really, all of them look pretty busy.