[{'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: You have the right to request that we update, correct, or delete (assuming that this does not impact the services we are providing to you) your personal data at any time. Please note that we may reject requests which risk the privacy of others or are unreasonable or repetitive, or would require disproportionate effort. Unless you request us to delete your data, please note that we may keep your personal data for one year after you stop being a customer (but we typically keep your personal data no longer than is reasonably necessary given the purposes for which the data was collected)."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]