How to get the string "response" from "getxmlresponse" function?

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C#

How to get the string "response" from "getxmlresponse" function to use in another function ? and how to convert string to xml and xml to database?

public string getxmlresponse(string ChkRequest)
   {
       string RequestURLString = " http://www.hotelspro.com/xf_3.0/hp_xml_request_parser.php?xml=" + ChkRequest;
       WebRequest wrequest = null;
       try
       {
           string Response = string.Empty;
           wrequest = WebRequest.Create(RequestURLString);
           Stream ResponseStrm = null;
           wrequest.Timeout = 0xea60;
           ResponseStrm = wrequest.GetResponse().GetResponseStream();
           StreamReader Reader = new StreamReader(ResponseStrm);
           try
           {
               Response = Reader.ReadToEnd();
           }
           catch
           {

           }
           return Response;
           ResponseStrm.Close();
           Reader.Close();

    }
       catch (Exception)
       { }
       return "";
   }