[{'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: Once your Mobile Device has been enrolled, all transaction data is transmitted securely between your Mobile Device and your issuer and bank. Recent transaction history is available on your Mobile Device and is known only to you, your bank and card issuer. We do not collect any information on the transactions you make or the device or account used to make transactions. We may, however, aggregate and anonymize information collected regarding your attempts to make purchases using Samsung Pay to understand the way people use Samsung Pay so that we can improve it by making it more convenient and useful for our customers."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]