system
nostalgic: I was thinking about my high school prom and I really miss those days. I was so cool then. 
human
I was thinking about my high school prom and what a great night it was. I was so cool back then.
human
Isn't it fun to think of times like that. When you were free of most responsibilites?
human
Yeah and I had a beautiful date too. 
human
What year did you graduate?
human
1982