How can I get this SOAP response?

[Daniela CLARO]

Hi all,
 
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:xsd="http://www.w3.org/2001/XMLSchema";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
 <soapenv:Body>
  <findFlightResponse
soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";>
   <findFlightReturn href="#id0"/>
  </findFlightResponse>
  <multiRef id="id0" soapenc:root="0"
soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/";
xsi:type="ns1:ReturnFlight"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/";
xmlns:ns1="urn:Flight">
   <numberFlight xsi:type="soapenc:string">1234</numberFlight>
   <price xsi:type="soapenc:string">625.30</price>
  </multiRef>
 </soapenv:Body>
</soapenv:Envelope>

I am trying to get this response numberFlight and price but they belongs to
a type called ReturnFlight. I did that in my appplication:
 
ReturnFlight ret = new ReturnFlight();
 ret = (ReturnFlight)call.invoke( new Object [] { fromCity,
toCity,dtDeparture,dtArrival });

But I receive a convertion error:
Exception in thread "main" java.lang.ClassCastException
        at FlightAXISClient.main(FlightAXISClient.java:67)

How can I do to retrieve my values in my application client?
Thank you very much,
DAniela