Mr Dietmar Duller’s, in-flight service training course for private jet flight attendants is an intense roller-coaster ride exploring everything we need to know about providing excellent service. He’s skilful, passionate and eager to show you the way. I learned details that I wouldn’t’ have discovered if it weren’t for his class. I’m so glad and very lucky that I got full support from my employer to attend this training- all the way from Singapore to Geneva. I feel more confident that I can provide excellent service to my clients, thanks to Mr. Dietmar Duller. This class is great and I highly recommend it.

Ornella Sungkono