Thanks you very much for your good information.
In fact, my family name is 蔡 but not 菜. So, I use "correct" instead of " change".
In addition, you told me that "flatting" is a wrong word. Should use flattering instead. Because you helped me correct it, I only use to change from flatting into flattering. If I use "correct" word, this means that I found that "flatting" was wrong and I corrected it by myself.
