Example for a slot that has an appointment allocated to it

{
  "resourceType" : "Slot",
  "id" : "1",
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n\t\t\t25 Dec 2013 9:00am - 9:15am: <b>Busy</b> Physiotherapy\n\t\t</div>"
  },
  "identifier" : [{
    "system" : "http://example.org/identifiers/slots",
    "value" : "123132"
  }],
  "serviceCategory" : [{
    "coding" : [{
      "code" : "17",
      "display" : "General Practice"
    }]
  }],
  "schedule" : {
    "reference" : "Schedule/example"
  },
  "status" : "busy",
  "start" : "2013-12-25T09:00:00Z",
  "end" : "2013-12-25T09:15:00Z",
  "overbooked" : true,
  "comment" : "Assessments should be performed before requesting appointments in this slot."
}