Ever wanted a personal assistant? An AI one could be around the corner

AI personal assistants have been spotted in movies and other pop culture. Now tech giants are trying to bring those to your phones. Ben Wood, chief analyst at CCS Insights, talks to CNBC's Tom Chitty and Arjun Kharpal about his firm's annual predictions report and why he thinks that we could have an AI model trained on our own personal data by 2025.