[@Zitacamron95]
(The poor server today - in and out, in and out.)

Well, they're established trainers, right? Maybe the Pokémon professor (which one will be reliant on where we do Hoenn or Kanto) is doing a speech at some event (or is the event?) that's related to Pokémon breeding or something of that nature and they meet there? It could be something they come across while they're adventuring - they both just happen to be in town when the Pokémon professor is there, and it happens to be relative to your trainer's goals and my trainer, who looks up to Pokémon professors, just eager to learn anything from the professor.

Right now, thanks to Alpha Sapphire, I'm more familiar with Hoenn, so I'd prefer to use that region.