Communicate over TCP Socket and Serialize data with json format in C#

Client :

Socket socket=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
            socket.Connect("127.0.0.1",9011);

            Console.WriteLine("connected...");

            Person person=new Person(){Name = "Mahmood"};

            string jsonData = JsonConvert.SerializeObject(person);
            byte[] dataBytes = Encoding.Default.GetBytes(jsonData);

            socket.Send(dataBytes);

            Console.WriteLine("sent...");

            byte[] buffer=new byte[1024*4];
            int readBytes = socket.Receive(buffer);
            MemoryStream memoryStream = new MemoryStream();

            while (readBytes>0)
            {
                memoryStream.Write(buffer, 0, readBytes);

                if (socket.Available > 0)
                {
                    readBytes = socket.Receive(buffer);   
                }
                else
                {
                    break;
                }
            }

            Console.WriteLine("read...");

            byte[] totalBytes = memoryStream.ToArray();

            memoryStream.Close();

            string readData = Encoding.Default.GetString(totalBytes);

            Greeting response = JsonConvert.DeserializeObject<Greeting>(readData);

            Console.WriteLine(response.Msg);

            Console.ReadKey();

Server :

            Socket socket=new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);
            EndPoint endPoint=new IPEndPoint(IPAddress.Any, 9011);

            socket.Bind(endPoint);
            socket.Listen(5);

            while (true)
            {
                Console.WriteLine("waiting for new connection...");

                Socket newSocket = socket.Accept();

                MemoryStream memoryStream = new MemoryStream();

                Console.WriteLine("new connection...");

                byte[] buffer=new byte[1024];

                int readBytes = newSocket.Receive(buffer);

                while (readBytes>0)
                {
                    memoryStream.Write(buffer,0,readBytes);

                    if (socket.Available > 0)
                    {
                        readBytes = newSocket.Receive(buffer);    
                    }
                    else
                    {
                        break;
                    }
                }

                Console.WriteLine("data received...");

                byte[] totalBytes = memoryStream.ToArray();

                memoryStream.Close();

                string readData = Encoding.Default.GetString(totalBytes);

                Person p= JsonConvert.DeserializeObject<Person>(readData);

                Greeting g = SayHello(p);

                string dataToSend = JsonConvert.SerializeObject(g);

                byte[] dataToSendBytes = Encoding.Default.GetBytes(dataToSend);

                newSocket.Send(dataToSendBytes);

                newSocket.Close();

                Console.WriteLine("data sent...");
            }

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