Theoretically, Kamistella could show up at the guild on the morning of March 14-15 and meet Erika there. But I don't know how that would look. Erika didn't meet any Kamistellas during those days...🤔
Added 4 minutes later
More precisely, any character can find any character who is ahead in time, since they already know where that character was...
It's better not to risk it, otherwise Kamistella, in the name of the timeline, will crash in a stagecoach and perish in the sands.