[{'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: b. Credit Card Information If you purchase a Lookout Service subscription directly from us, we collect your credit card number, expiration date, security code and other applicable billing information. We use this information to bill you for services. Lookout uses third-party payment processors and therefore has only limited information about your payment transactions."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]