message updateWorkingDaysResponse
parts 
response
element calendar:updateWorkingDaysResponse
used by 
Operation updateWorkingDays in PortType CalendarService
source 
<wsdl:message name="updateWorkingDaysResponse">
  <wsdl:part name="response" element="calendar:updateWorkingDaysResponse"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy