Looking on the internet deeply has found these results:

I am so happy that you say so is the most popular phrase on the web.

I am very happy that you say so 10 results on the web	I am so happy that you say so 12 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	Jan 18, 2013 ... I am so happy that you say so! :hug: The impression seen first is not forgotten, isn' t it? His jump is so beautiful! Reply · :iconkakashimetaknight915: kakashimetaknight915 Featured By Owner Jan 19, 2013. Wow, I love the ... Apr 7, 2008 ... I am so happy that you say so about Douce Amere! Isn't it fabulous? Love it! Yet it's one of the lesser loved Lutens (much more so than Un Bois Vanille) You're very welcome and thank you for your kind words regarding my ...

I am very happy that you say so

10 results on the web

I am so happy that you say so

12 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

Jan 18, 2013 ... I am so happy that you say so! :hug: The impression seen first is not forgotten, isn' t it? His jump is so beautiful! Reply · :iconkakashimetaknight915: kakashimetaknight915 Featured By Owner Jan 19, 2013. Wow, I love the ...
Apr 7, 2008 ... I am so happy that you say so about Douce Amere! Isn't it fabulous? Love it! Yet it's one of the lesser loved Lutens (much more so than Un Bois Vanille) You're very welcome and thank you for your kind words regarding my ...