[{'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 may have the opportunity on our website to provide a mobile number in order to receive day-of-travel flight alerts. You may discontinue these alerts at any time."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Phone_Number_1stParty.'}]