system
sentimental: I was feeling a bit nostalgic the other day when my son went back to college. It made me think of him when he first started Kindergarten. 
gpt
My son went back to college recently and it had me feeling a bit nostalgic. I could just picture him starting Kindergarten and it seemed not so long ago!
human
aww. im sure you must feel proud of him
gpt
Yes, very. But, time sure has flown by with him growing up. I can just see his little blonde head when he was 5 and just starting school!
human
that sounds so cute