Dear Mister A,
I am B, the son of Mrs. C.
Together in my mother’s behalf, we wish the best to you and your family.
Our family cincerely thanking you and your wife, as well as all of your family members who have been very kind and helpful to our mother.
We are looking forward if there is a chance for you to come visiting us at our home at the address below.
Hello family and wish her health and happiness
See you soon
Sincerely yours,