Thank you for implementing this quick! :D
It's an interesting way to create dialogs. I wanted to add more commands in order to keep the programming part simple, but I realized that answer and greets can be confusing for those who just want to explore a world...
Right now it appears that we can only set one usage word for a vessel. Will there be a way to add more in the future ?
Also I found a bug. If you just type say after programming the character, the screen goes white (I didn't find how to open the console yet...)