Dear Mr.Wang,I truly appreciate the guidance and support you have given me in the past year.Thank you for the great skills and knowledge you've imparted to me.However,I have to submit my resignation for personal reasons,leaving my job at the International Students Office.As the recruitment season is coming,I have to spend a lot of time preparing for job interviews.Besides,I must work on my graduation thesis,reading a large amount of literature and discussing regularly with my thesis adviser.Therefore,I decide to quit this job to focus on my job hunting and thesis writing.Please accept my sincere apologies for the inconvenience this may cause.I will do my utmost to make a smooth handover before leaving.Best regards,Li Ming