Problem
Write a SQL query to identify churned patients on Headway, defined as those who have not booked an appointment within 60 days of their last session.
Practicing as: Data Analyst interview at HeadwayHi, I'll play your Headway interviewer for the Data Analyst role. Candidates describe these interviews as often stressful and moderately difficult, so expect me to be direct and to the point. Take your time with the question above and answer like we're in the room.
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