REVISED :
Dear Mr. Dittmer:
I am writing to you to request a trainer for our seminar on sexual harassment and unlawful discrimination in the workplace for twenty of our office supervisors. Our company would also like to take this opportunity to thank you for Wydade’s reliable support in offering most of Broadworth’s training needs for the past 20 years.
We would like the seminar to be held on the 14th of September 2012 at 10 am. The seminar is to be two hours long with a 15-minute break where refreshments will be provided. It will be held in our conference room on the first floor in room 105. The topics we need to be covered are ways to prevent, cope with, and report such harassment. At your convenience could you please send me a list of resources the trainer will need in order to make this seminar a success. We would also need to know what our supervisors should bring along with them to the seminar.
If you have any further questions or concerns please do not hesitate to contact me at 802-585-8668.
Sincerely,
Shawna Parker
Shawna Parker
Administrative Assitant
SP
1 answer
... with a 15-minute break where refreshments ...
(Since a break is not a place, you need to replace "where" with "during which" ... )
... further questions or concerns, please contact me ...
(It's always better to state things positively, rather than negatively ... and don't forget that comma there.)