[{'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: 2.3 There may be times when our Services or any part of them are not available for technical or maintenance related reasons, whether on a scheduled or unscheduled basis."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]