text: // <addAdaptiveCardAttachment>
  var msg = new builder.Message(session)
      .addAttachment({
          contentType: "application/vnd.microsoft.card.adaptive",
          content: {
              type: "AdaptiveCard",
              speak: "<s>Your  meeting about \"Adaptive Card design session\"<break strength='weak'/> is starting at 12:30pm</s><s>Do you want to snooze <break strength='weak'/> or do you want to send a late notification to the attendees?</s>",
                 body: [
                      {
                          "type": "TextBlock",
                          "text": "Adaptive Card design session",
                          "size": "large",
                          "weight": "bolder"
                      },
                      {
                          "type": "TextBlock",
                          "text": "Conf Room 112/3377 (10)"
                      },
                      {
                          "type": "TextBlock",
                          "text": "12:30 PM - 1:30 PM"
                      },
                      {
                          "type": "TextBlock",
                          "text": "Snooze for"
                      },
                      {
                          "type": "Input.ChoiceSet",
                          "id": "snooze",
                          "style":"compact",
                          "choices": [
                              {
                                  "title": "5 minutes",
                                  "value": "5",
                                  "isSelected": true
                              },
                              {
                                  "title": "15 minutes",
                                  "value": "15"
                              },
                              {
                                  "title": "30 minutes",
                                  "value": "30"
                              }
                          ]
                      }
                  ],
                  "actions": [
                      {
                          "type": "Action.Http",
                          "method": "POST",
                          "url": "http://foo.com",
                          "title": "Snooze"
                      },
                      {
                          "type": "Action.Http",
                          "method": "POST",
                          "url": "http://foo.com",
                          "title": "I'll be late"
                      },
                      {
                          "type": "Action.Http",
                          "method": "POST",
                          "url": "http://foo.com",
                          "title": "Dismiss"
                      }
                  ]
          }
      });
  // </addAdaptiveCardAttachment>