Well, if he's been here for a while, I believe he should have all six slots taken? Though there's not much you can do even if you'd know.

[He hasn't been able to find the missing Pokémon and he's gotten himself lost while running and looking and-- Winry is going to be disappointed in him when she wakes up, huh?]

Yeah. ... Me? Oh, I just... happened to be in the wrong place when the ghost swarms started. They weren't kidding when they told us to stay in towns.