freeswitch/conf/vanilla/chatplan/default.xml

<?xml version="1.0" encoding="utf-8"?>
<include>
  <context name="default">

    <extension name="demo">
      <condition field="to" expression="^(.*)$">
	<!--	<action application="lua" data="test.lua"/> -->

	<action application="reply" data="Hello, you said: ${body}"/>
      </condition>
    </extension>

  </context>
</include>