<?xml version="1.0" encoding="UTF-8"?>
<ns0:traveler xmlns:ns0="http://example.org" xmlns:ns2="http://example.org/fname" xmlns:ns1="http://www.example.org/traveler">
   <ns2:firstName>Adrian</ns2:firstName>
   <ns1:lastName>Clinton</ns1:lastName>
   <ns1:reservation>
      <ns1:city>Ottawa</ns1:city>
      <ns1:country>Canada</ns1:country>
   </ns1:reservation>
</ns0:traveler>