meeting calendar

Is there a feature in Populi that would allow me to set up online meetings in an automatic way, allowing students to see a block of time, and available meeting times within the block, and sign up for a time within the block.  I'm trying to imagine the old fashioned sign up sheets for parent / teacher meetings.  I commit to being available for a block of time.  The block of time is established in Populi, and then students sign up for 15 or 30 minute appointments within the set up block of time.