message startPageFlowResponse
parts 
response
element pageflow:startPageFlowResponse
used by 
Operation startPageFlow in PortType PageFlowService
source 
<wsdl:message name="startPageFlowResponse">
  <wsdl:part name="response" element="pageflow:startPageFlowResponse"/>
</wsdl:message>

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