explícame en lenguaje natural este código hecho en C#:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml;
using System.Xml.Linq;
using Amadeus_Proxy.Controller;
using Amadeus_Proxy.DTO;
using Amadeus_Proxy.Enums;


namespace Amadeus_Proxy.AmadeusMethods
{
    public class AmadeusMethod
    {
        DTOAmadeus result = new DTOAmadeus();
        private readonly DTOMethod method = new DTOMethod();

        #region XmlUnion
        //Función para unir dos XmlDocument en uno solo -> Xml Request
        public string XmlUnion(string xml1, string xml2)
        {
            try
            {
                XmlDocument doc1 = new XmlDocument();
                doc1.LoadXml(xml1);

                XmlDocument doc2 = new XmlDocument();
                doc2.LoadXml(xml2);

                foreach (XmlNode node in doc2.DocumentElement.ChildNodes)
                {
                    XmlNode imported = doc1.ImportNode(node, true);
                    doc1.DocumentElement.AppendChild(imported);
                }
                return doc1.OuterXml;
            }
            catch(Exception ex)
            {
                DTOAmadeus errorDescription = new DTOAmadeus();
                errorDescription.Error = MessageController.Message("ERROR", "Error executing XmlUnion => WcfAmadeus_Proxy. " + ex.AggregateMessages());
                return errorDescription.ToString();
            }
        }
        #endregion XmlUnion

        #region ExtracBody
        public string ExtractBody(string xml)
        {
            try
            {
                var firstBody = "<Body>";
                var lastBody = "</Body>";

                var startXml = xml.IndexOf(firstBody) + firstBody.Length;
                var endXml = xml.IndexOf(lastBody, startXml);
                var resultXml = xml.Substring(startXml, endXml - startXml);

                return resultXml;
            }
            catch (Exception ex)

            {
                DTOAmadeus errorDescription = new DTOAmadeus();
                errorDescription.Error = MessageController.Message("ERROR", "Error executing ExtractBody => WcfAmadeus_Proxy. " + ex.AggregateMessages());
                return errorDescription.ToString();
            }
        }
        #endregion ExtractBody

        #region RemoveNamespace
        //Función para eliminar NameSpace del XML
        public XDocument RemoveNamespace(XDocument xdoc)
        {
            try
            {

                foreach (XElement e in xdoc.Root.DescendantsAndSelf())
    I want the entire output in JSON format.
user