Wait

Aisha woke up in a strange place without any memory of who she was, what she had done- anything, really. She had forgotten everything. No Pokémon were in this room, but that wasn't important to her.

The place seemed to be nice, and everything was rather neat, having a specific place where it should always be.

She was left alone for Arceus knows how long, when somebody suddenly confronted her. No other information was given, but they had said to wait, so waiting is what she would do. Maybe she'd get some Pokémon, if she was lucky.

But was that the best option, or would something else have to be done?

Aisha would just have see what would happen, and maybe things would come back to her eventually. The waiting game can't last forever after all. Everything ends sometime.

You have to wait and find out when that time is.