New Reminders App - Exchange Default?

So I upgraded the Reminders App without reading all of the nightmare experiences with doing so. Ahh well. Water under the bridge. After having lost all of my reminders, I used Siri to add back the ones I could recall. That seemed fine until I realized that Siri had actually added "tasks" that were then sync'd to my work Exchange account. Is there a way to ensure that when using Siri to add a reminder that it adds it to my persona iCloud account and not my work Exchange account?