请英语好的帮忙翻翻，简单点的，随便润一下，参考参考~
I worked in XXX company after graduation, three months as receptionist and three years as telephone operator afterwards. In this period, I learned how to deal with different people. At the same time I took the university diploma courses for improving myself. I think I have friendly smile and good communication skill and competent for the job.
After graduation, I’ve been working at xxx for about three years during which I worked at the reception for three months and later shifted to the telephone exchange center for the rest of the time. With the experience of my work, I learned how to deal with different people. Meanwhile I’ve been studying the refresher courses for a bachelor’s degree so as to improve myself. I am proud of my sweet smiles and the skills in communicating with others, and I am confident that I am competent for this post.