[{'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: Use of cookies, web beacons and other similar technologies United and our third party service providers collect information by using technologies and methodologies, such as "cookies", tags, web beacons or other similar technologies that enable tracking as you browse our sites. We use these technologies to authenticate you as a user, to remember your preferences for using the site, to present offers that may be of interest and to facilitate transactions, such as flight searches and purchases. We and our third party service providers also use these tools to analyze use of our sites and our services. We may use this information in the aggregate or combine it with information that we have already collected about you.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty, Identifier_Cookie_or_similar_Tech_3rdParty.'}]