[{'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: We will send you transaction confirmation emails and other Service-related announcements when it is necessary to do so. For instance, if our Service is temporarily suspended for maintenance, we might send you an email. Generally, you may not opt-out of these communications, which are not promotional in nature. If you do not wish to receive them, you have the option to deactivate your account."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]