Match the interaction to the human need
AI customer journeys work best when the interaction style reflects the customer's real situation, not a default human-like persona. Routine tasks such as payment follow-ups or broadband troubleshooting may be better handled by a clearly non-human, efficient service that avoids small talk and false emotional cues. In those moments, a transactional AI can reduce embarrassment or friction because the customer is not being judged by another person.
Human support should remain the default for moments involving grief, distress, vulnerability or decisions with serious personal consequences. A customer cancelling a deceased partner's account, for example, needs human care rather than an automated decision tree. The boundary is a brand and service-design decision: identify where speed and consistency help, and where genuine human judgement is essential.
Sources: The Prompt: Are your brand guidelines ready to deliver behaviour?, The Prompt: Why brand matters more than ever in an AI world