My powers aren't strong enough for one of my sylphs to do it either.

[It's a hard admission to give, but better than her complete powerlessness back when they were at Camp Half-Blood]

Is there a way to make sure you meet up with one of them?

[She's never tried, she's never had to in fact. Generally, she's screaming into the wind at her relatives. Although, even that had been happening less recently.]