Nonexistent Variable "Name"

I’m trying to put in a text box so player, and so far my text looks like this:

#I am a young man.
Of course. And what is your name?
#None of those!
What is your name?
*input_text name
Your name is ${name}, is that right?

But I keep getting an error message that says “Non-existent variable ‘name’”.

In your startup.txt, you have to put a *create name

Start with my guide here. It walks you through all the basics you’ll need. But for this instance, as already mentioned, you have to *create a variable before you can use it.