Hi Matthew, How are you doing?

Hi Matthew, How are you doing?
You were very helpful to me when we spoke last week on the phone, despite the fact that your company did not offer the service that I needed. I found that to be very admirable on your part, and I hope that your company recognizes just how much of an asset you are to them. You went over and above your call of duty to help me. I appreciated that very much, thank you.