請問見工時，點樣用英文作自我介紹？

Good morning/afternoon. My name is Xxx. I finished my degree of business studies at University of Chicken 3 year ago. I am now working in a trading company as admin assistant. The job involves frequent back to the mainland to liase with clients there.

Usually, up to here, the interviewer will break in for another questions like
'Do you like your present job?',
'Why do you want to change?',
'Why do think you are suitable candidate for this post?'

Hope this will help you in the interview.