conversation.js

class Conversation {
    //...

    //Intent update_settings
    actionUpdateSettings() {
        this._askForUserName();
    }

    _askForUserName() {
        const permission = this.dialogflowApp.SupportedPermissions.NAME;
        this.dialogflowApp.askForPermission(Str.PERMISSIONS_ASK_FOR_NAME, permission);
    }
  
    //...
}