public void convertAttendees(ApexPages.StandardController controller){

   List<LightiningEd__Webinar_Attendees_Status__c> waa = [SELECT id,Name FROM LightiningEd__Webinar_Attendees_Status__c WHERE LightiningEd__Create_Lead__c=TRUE];
   System.debug('waa value:::'+waa);
   List<Lead> LeadList = new List<Lead>();
   for(LightiningEd__Webinar_Attendees_Status__c wa: waa){
                System.debug('Name::'+wa.Name);
                Lead le = new Lead ();
                le.LastName = wa.Name;
                le.Status = wa.Name;
                le.Company = wa.Name;
                LeadList.add(le);

   }
  if(!LeadList.isEmpty()){
       upsert LeadList;

<apex:page standardController="Webinar__c"
          tabstyle="Adobe_Webinars__tab" sidebar="false" extensions="ConvertWebinarAttendees,WebinarDetailsReport,DisplayContact5">
<apex:form >
 <apex:pageBlock title="Adobe Connect Integration with Salesforce">
     <apex:pageBlockSection title="{!Webinar__c.Name} Details">
        <apex:outputField value="{!Webinar__c.Name}"/>
     </apex:pageBlockSection><br/>
      <center>
         <apex:commandButton id="saveBtn" value="Save" action="{!save}" />
         <apex:commandButton id="cancelBtn" value="Cancel" action="{!cancel}" />
      </center><br/>
</apex:pageBlock>

 <apex:pageBlock title="{!Webinar__c.Name}  Webinar Attendees ">
      <apex:pageBlockTable value="{!wee}" var="w" >

      <apex:column value="{!w.LightiningEd__Create_Lead__c}"></apex:column>

             <apex:column value="{!w.name}"/>
             <apex:inlineEditSupport event="ondblClick" />

             <apex:column value="{!w.Mobile_Phone__c}"/>
             <apex:inlineEditSupport event="ondblClick" />
     </apex:pageBlockTable>  <br/>
     <center>
         <apex:commandButton id="saveBtn" value="Save" action="{!save}" />
         <apex:commandButton id="cancelBtn" value="Cancel" action="{!cancel}" />
         <apex:commandButton id="leadcreate" value="Create Lead" action="{!convertAttendees}"/>
      </center><br/>
    </apex:pageBlock>