Hello Garry,
Thank you for making the event such a success, your experience and advice were invaluable. The event ran to time without a blip, no mean feat on your part. Most of the people attending are regulars at these events and more than a few commented on your expertise and the jovial but calm manner you brought to the event. I would not hesitate in recommending you to family, friends, or colleagues in the future. From my own experience you set the benchmark that others should try to emulate.
Thank you once again for all your hard work on Saturday and I look forward to seeing you again next year.