Conversational Analytics using Power BI & Cortana

Hi,

We want to develop Cortana skills such that when asked a question it queries the dataset in Power BI and returns an answer in speech. For example, the user asks Cortana, "Which customer had the highest default rate last week?" Cortana queries the dataset in Power BI and answers, "John Doe". How can we use Cortana skills and Power BI to build a solution which satisfies this requirement? or any ideas maybe using Azure Bot Services, Application insights... with Cortana?

Thanks