"Derek, We've been back a week and I have not had a chance to email you. The trip was great and that is in large part to your extraordinary efforts.
Everything you handled - flights, car service, trains, water taxis, guided tours & hotels - went very smoothly. Your suggestions on cities & sights and the appropriate time for each were spot on.
Thank you very much for everything you did.
We will refer others to you. Take care."