One of the USP of Watson Assistant is super intuitive Dialog editor UI. Developers being key targets for WA, it is imperetive to have best in class UI.
On nodes, multi-response condition, there is a delete and a gear icon. The icons are too close and it happened to me few times that I clicked on delete icon instead of gear icon by mistake. The ended up deleting the condition without any undo option.
We need a confirmation dialog when user tries to delete a condition (multi-dialog response). This will prevent any unwanted deletions and make the UI developer/SME friendly.