Microsoft is adding a new feature to Cortana today that will remind you to keep your promises. Suggested reminders lets Cortana remind you when you’ve promised to do something in an email. Microsoft is using machine learning to highlight phrases in emails where you might promise your boss something, or make a commitment to a friend or family member. The result is a reminder that pops up telling you “don’t forget you mentioned this.”

Cortana’s suggested reminders will be available in the US first on Windows 10 PCs, and Microsoft is planning to bring them to iOS and Android in the coming weeks. Microsoft is supporting Outlook.com and Office 365 accounts for these reminders, and other accounts like Gmail will be supported soon. You’ll need to connect an Outlook.com or Office 365 account to Cortana to enable the feature, and you’ll start receiving reminders once the service detects your promises and commitments.