For many, the "last mile" of the end-to-end customer journey can present a challenge. Services at this stage often involve much more complex interactions than the usual app or self-service portal can handle. This could be dealing with a challenging health diagnosis, addressing late mortgage payments, applying for government benefits, or understanding the lifestyle you can afford in retirement. "When we get into these more complex service needs, there's a real bias toward human interaction," says Neufeld. "We want to speak to someone, we want to understand whether we're making a good decision, or we might want alternative views and perspectives." But these high-cost, high-touch interactions can be less than satisfying for customers when handled through a call center if, for example, technical systems are outdated or data sources are disconnected.