"I just wanted to give you some feedback on the event last night. Everything ran smoothly, with the food and drinks being served to schedule. Gill and Sarah did an excellent job and were both friendly and attentive.
All-in-all, it was a success! Thank you for all your assistance in helping us put this event together, particularly with regard to fitting everything into our budget. Everyone thoroughly enjoyed the food, and I think I can safely say that we will be using your company again for our catering needs. "