Yo, another one to be answered with Tasker:
Tasker is the most complex and mighty automation tool available for Android, which even can handle your car and stereo (given some extras). You can setup a "Profile"1 watching your calendar and reacting on keywords found in the descriptions (oh, you can do the same for mails and short-messages, by the way). As it also can create calendar events (or send messages), creating a reminder should be easy to do.
As Tasker doesn't come for free (it's about USD 5, but worth every cent) and has a steep learning curve (the linked tag-wiki also contains links to tutorials and more, make sure to check those), you might wish to first pick the 7-day trial from their project site. All details for that can be found in the mentioned tag-wiki at our Android sister-site – where you also can find further help with Tasker if needed.
1: For Tasker, a "profile" is a combination of a "condition" (event, state) with a "task" (action to perform)