Interface segregation coding challenge

interface_segregation.rb

class User
  def generate_unique_id
    @unique_id = Digest::MD5.hexdigest("#{name}-#{last_name}")
  end

  def confirm_email
    EmailProcessor.send_email(@email, @unique_id)
  end
end

class Admin < User
  def generate_user_id
    generate_unique_id
  end
end

class Customer < User
  def send_confirmation_email
    generate_unique_id
    confirm_email
  end
end