Neo4j

Is there a best practice or example of someone using neo4j for calendar appointments? I have found a lot for Relational databases but nothing for a graph. I cannot believe I am the first to attempt this 

Environment Info Currently using v4.2.3 - Community. Attempting the following via the browser interface. No use of add-ins. What I am trying to achieve Looking to create a constraint for a unique value, using the following code CREATE CONSTRAINT cons...