How to serialize c# object to generate xml?

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XML

C#3.5

serialization

I want write C# classes, so that when I am serialize them in to XML, it should generate the following XML schema.

<soapenv:Envelope
            xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
            xmlns:web="http://webservice.api.cabaret.com/"
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
            xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <soapenv:Header/>
   <soapenv:Body>
      <web:callArgs>
         <name></name>
         <args>
            <entries>
               <name>locator.content</name>
               <value xsi:type="xs:string">AA==</value>
            </entries>
            <entries>
               <name>locator.name</name>
               <value xsi:type="xs:string">Reha0850.pdf</value>
            </entries>
         </args>
      </web:callArgs>
   </soapenv:Body>
</soapenv:Envelope>

Please provide me the help, how should i write the c# classes and serialize them to generate above mentioned XML schema.

What I have tried:

I tried lot by defining the classes and serialize them, but I do not get the exact schema what I am expecting.