broken loop in ruby socket

ruby_socket.rb

require 'socket'

server = TCPServer.new(2000)

# An "echo server" read a single line of input from the client, echoes that
# input line back to the client, hangs up, and listens for a new connection.

def echo_prompt(client)
  client.puts "Enter some input to echo"
  input = client.gets.chomp
  client.puts "You said \"#{input}\"."
end

loop do
  puts "Waiting for new clients on port #{server.addr[1]}..."
  client = server.accept
  echo_prompt(client)
  # client.puts "Want to do echo some more text? (type y for yes, anything else for no)"
  # response = client.gets.chomp
  # if response == "y"
  #   echo_prompt(client)
  # else
  #   client.close
  # end
  client.close
end