Watch: Microsoft's Satya Nadella has embarrassing Cortana fail during demo

Microsoft CEO Satya Nadella had an embarrasing fail while testing Cortana (Microsoft's personal assistant software) during a live presentation at Dreamforce 2015 that was held at San Francisco, USA. While delivering the keynote speech at the the big user conference held by Salesforce, Nadella seemed a bit frustrated, and even apologized to the crowd after failing thrice during the live presentation. He was talking about artificial intelligence and trying to showcase how Cortana is able to understand natural language queries. Eventually, on his fourth attempt, he changed his query and was able to get it to work.