Where are the dialog boxes for input/output?

I'm trying to do basic i/o using Squeak and I've looked through my browser,
but I can't seem to find anything that allows simple (keyword: simple)
dialog.  All I want is to ask the user a question (What is your name?) and
then respond using the string they provide (Hello, name).  But I can't even
figure out which morphs open popups.  

My friend (equal knowledge of SmallTalk) did this in under 2 minutes using
Visualworks, so I know it's possible.  Any help would be appreciated.
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