[{'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: 2.2 Prior to requesting information from you on our websites, we will define the purposes for which such information is to be used. You, the customer, may then choose whether or not to proceed with the transaction and use our products and services and provide the appropriate information. If you prefer not to provide the required information, then the transaction shall be canceled."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]