[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: By Users - If your personally identifiable information changes, or if you no longer desire our service, you may correct, update or delete it by making a request to us or by contacting us at the email address provided above. We will respond to your request to access within 30 days."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]