DismissCalendarItemAlarmRequest

    <DismissCalendarItemAlarmRequest> ## DismissCalendarItemAlarmRequest
        (<appt id="{cal-item-id}" dismissedAt="{dismissed-at-millis} (long)" /> ## DismissAppointmentAlarm)*
    </DismissCalendarItemAlarmRequest>

elements and attributes you can define within a <DismissCalendarItemAlarmRequest> element:

DismissCalendarItemAlarmResponse

    <DismissCalendarItemAlarmResponse> ## DismissCalendarItemAlarmResponse
        (<appt calItemId="{cal-item-id}"> ## UpdatedAppointmentAlarmInfo
            <alarmData [nextAlarm="{next-alarm} (Long)"] [alarmInstStart="{instance-start-time} (Long)"]
                           [invId="{invite-mail-item-id} (Integer)"] [compNum="{component-num} (Integer)"]
                           [name="{meeting-subject}"] [loc="{meeting-location}"]> ## AlarmDataInfo
                <alarm action="{alarm-action}"> ## AlarmInfo
                    <trigger> ## AlarmTriggerInfo
                        <abs d="{YYYYMMDDThhmmssZ}" /> ## DateAttr
                        <rel [neg="{duration-negative} (0|1)"] [w="{duration-weeks} (Integer)"]
                                 [d="{duration-days} (Integer)"] [h="{duration-hours} (Integer)"]
                                 [m="{duration-minutes} (Integer)"] [s="{duration-seconds} (Integer)"]
                                 [related="{alarm-related}"] [count="{alarm-repeat-count} (Integer)"] /> ## DurationInfo
                     </trigger>
                    <repeat ... /> ## See /appt/alarmData/alarm/trigger/rel [ ## DurationInfo]
                    <desc>{description} (String)</desc>
                    <attach [uri="{alarm-attach-uri}"] [ct="{alarm-attach-content-type}"]>{binaryB64Data}</attach> ## CalendarAttach
                    <summary>{summary} (String)</summary>
                    (<at [a="{email-address}"] [url="{url}"] [d="{friendly-name}"] [sentBy="{sent-by}"] [dir="{dir}"]
                             [lang="{language}"] [cutype="{calendar-user-type}"] [role="{role}"]
                             [ptst="{participation-status}"] [rsvp="{rsvp} (0|1)"] [member="{member}"]
                             [delTo="{delegated-to}"] [delFrom="{delegated-from}"]> ## CalendarAttendee
                        (<xparam name="{xparam-name}" value="{xparam-value}" /> ## XParam)*
                      </at>)*
                    (<xprop name="{xprop-name}" value="{xprop-value}"> ## XProp
                        (<xparam name="{xparam-name}" value="{xparam-value}" /> ## See /appt/alarmData/alarm/at/xparam [ ## XParam])*
                      </xprop>)*
                 </alarm>
             </alarmData>
          </appt>)*
    </DismissCalendarItemAlarmResponse>

elements and attributes you can define within a <DismissCalendarItemAlarmResponse> element:

     X-FOO-HELLO;X-FOO-WORLD=world:hello
 

     <xprop name="X-FOO-HELLO" value="hello">
         <xparam name="X-FOO-WORLD" value="world"/>
     </xprop>