Artificial intelligence (AI) has long been promoted as a tool which could transform the way clinicians work in the NHS. However there is an awareness that the space between the promise and the reality is often large. Great Ormond Street Hospital (GOSH), in common with other NHS hospitals, has a problem with patients not attending appointments. Could artificial intelligence (AI) – which uses software to perform tasks usually requiring human intelligence – make a difference? By analysing operational data, GOSH hopes to develop an algorithm that can predict which patients are likely to miss an appointment, enabling the hospital to find ways to maximise the likelihood of them attending.