"It's just nice to know that you're out there helping people like us."
" Thank you so much for the information that you provided to us. Also, I wanted to thank you for the time you spent with me on the phone this morning, you were very knowledgeable and helpful."
"I wanted to let you know that my father was EXTREMELY APPRECIATIVE to get this information. I can't tell you the number of times he thanked me for the "connection.""