> TUIs suffer from a lack of discoverability Not always true. "Type customer reservation number" is very discoverable. A car dashboard has little text but ther

> TUIs suffer from a lack of discoverability Not always true. "Type customer reservation number" is very discoverable. A car dashboard has little text but there is no way to guess the meaning of some engine failure LEDs if you have never seen a car before. It's about usability design. The airline website has been carefully designed to guide inexperienced users. In the same way TUI can have guided "conversations" that are often easier for complete beginners, and become less verbose over time, as needed.