Dear Mrs. Miller，
I’m writing to introduce to you Mr. Wang， one of my high school classmates in Beijing. He is presently working for Lenovo Technologies and is going to be transferred to its branch in your city next month.
Since this will be the first time for him to work in a foreign country， he will possibly be faced with many problems， and especially the housing problem.
He hopes to obtain your guidance and help in finding a good apartment to live. You’ve been living there for more than 10 years， so you are surely familiar with things there.
If you can kindly help find rental quarters for her， I’ll be very ks for your due attention to this letter and hope to receive your reply soon.
Many thanks to the trouble you will have to take for Mr. Johnson.
Yours sincerely，