The Namespace need to be defined in the XML and the XSLT, too. It is missing in the XSLT at the moment:
XSLT:
<?xml version="1.0" ?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:eas="****************">
<!-- ... --->
</xsl:stylesheet>
XML Input:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<OUTPUT xmlns:eas="****************">
<eas:ShowDetailedRequestsByScheduleId>
<!-- ... --->
</eas:ShowDetailedRequestsByScheduleId>
</OUTPUT>