I probably won't make it 
I've got this sinuitis kind of thing going on, and am really hesitant to fly in this condition. If it magically goes away within a week I might grab a last minute ticket or something...
I wish you good luck with the event, and I hope it'll turn out as great as last year!

I've got this sinuitis kind of thing going on, and am really hesitant to fly in this condition. If it magically goes away within a week I might grab a last minute ticket or something...
I wish you good luck with the event, and I hope it'll turn out as great as last year!