Trust NPC dialogue?

[Enkidoh]

I do remember Alisaie specifically references

Tesleen

during Holminster, such as the sineater responsible for

turning her

that appears as the first boss Alisaie said something like "that's the one from before!" and when you get to the second boss, Alisaie said "So, this is where you went...". And at the very end of the dungeon after defeating Philia, Alisaie is clearly emotional, to the point her brother even turns to her and says "Alisaie...?", not understanding why she is like that. So really that particular dungeon it's kind of expected to have Alisaie at least in the party if only for said dialogue.

For specific dialogue like Iscah I would have to go back and look through my screenshots though (when I did Holminster I sadly did not use Lyna, replacing her instead with Alisaie. I don't regret it either. ).