What do you think of my cover letter? 10 points for the best advice. Thank you?

Dear Ms. Jones,

I would like to be considered for Program Assistant (5063) positions at American University. The skills that I have developed from work experience at Bowie State University and academic background support my strong interest in the program.
As indicated in the accompanying resume, I am a graduate assistant to the Chair in the Department of Management, Marketing, and Public Administration. My responsibilities include managing graduate students鈥?records and documents; managing the department internship, scholarship, and conference opportunities; developing and updating department website; and broadcasting information and scheduling courses on the university databases. In addition, I attended many professional development training including the Website Development Training, OSDBU Procurement Conference, and Faculty Research and Scholarship Training Series. I am currently a member of Society for Human Resource Management.
These experiences have given me an opportunity to effectively practice my skills in organizing, planning, researching, decision-making, team and systematic working, and communication skills. I am a hard worker who is highly motivated and dedicated to accomplish tasks efficiently.

I would appreciate a few minutes of your time to discuss my qualifications. If you have any questions please feel free to contact me by phone at 鈥? or by E-mail at鈥?. Thank you very much for your time. I am looking forward to hearing from you soon.

Respectfully yours,

Hope

You said "...I attended many professional development training including..." That is not worded correctly. Say "I attended many...training courses including...". Otherwise looks pretty good! Good luck!