Ruby: Conference listing and printing greetings

conference

def print_names(names)
  messages = []
  names.each do |name|
    messages << "Hello, my name is #{name}"
  end
  messages
end

def assign_room_to_speakers(names)
  assignments = []
  i = 1
  names.each do |name|
    assignments << "Hello, #{name}! You'll be assigned to room #{i}"
    i += 1
  end
  assignments
end

def send_to_the_printers(speakers)
  greetings = print_names(speakers)
  puts greetings

  assignments = assign_room_to_speakers(speakers)
  puts assignments
end

speakers = ["Edsger", "Ada", "Charles", "Alan", "Grace", "Linus", "Matz"]
send_to_the_printers(speakers)