Ask in any conversation: "Remind me tomorrow at 9 to call Marco", or "On Friday at 18:00 remind me to post the weekend offer."

• Cassy confirms the date and time before saving the reminder. If you don't give a time, it asks.
• At that time you receive an email and, if you allowed it, a browser notification.
• See, add and cancel reminders in the Reminders panel, or ask "What are my reminders?".

To get browser notifications, allow them when the browser asks, from the Reminders panel.