(Robert software solutions)
(February 8, 2012)
Dear (Mr. Smith),
At the outset let me thank you for providing us an opportunity to (cater to your in-house party) on (March 24, 2012).
It is indeed a matter of great pride for us to (cater to such esteemed customers) and get such a positive feedback from you.
We look forward to more such opportunities in the future. As always I am just a phone call or mail away, Please do keep in touch.