HTTP + XML
         The following are sample HTTP requests and responses. 
            The placeholders shown need to be replaced with actual values.
POST /xml/oneway/AppointmentConfirmation HTTP/1.1 
Host: content.pbsdealers.com 
Content-Type: application/xml
Content-Length: length
<AppointmentConfirmation xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/PBS.AristoServices">
  <AppointmentConfirmationMessage>String</AppointmentConfirmationMessage>
  <AppointmentDateTime>0001-01-01T00:00:00</AppointmentDateTime>
  <AppointmentRef>00000000-0000-0000-0000-000000000000</AppointmentRef>
  <ContactName>String</ContactName>
  <DealershipName>String</DealershipName>
  <ResultMessage>String</ResultMessage>
  <SerialNumber>String</SerialNumber>
  <VehicleInformation>String</VehicleInformation>
</AppointmentConfirmation>