Compliment or praise the work of an employee from another firm - 3

Dear Felix

As manager of our computer department, I commend your employee, Chris Johnson, for the prompt and courteous service he gave us last week. He determined our cable needs and produced a fair written estimate very quickly. Once he started the work, he stayed on location until he had installed all additional computers. You can be certain that we shall ask for him personally to serve our future needs.

Regards
Lydia