XSD for this XML payload

[kpalania]

Could someone tell me what the XSD should look like for a payload that looks like this -

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <isWebServiceAvailableResponse xmlns="http://company.com/">true</isWebServiceAvailableResponse>
  </soap:Body>
</soap:Envelope>

But for the namespaces, I know what the XSD should look like. It is the need for the parent element to be part of the SOAP namespace and the children to be part of my own namespace that is making it a bit difficult for me. Thanks.