I was thrilled to participate recently in the two-day Customer Service Excellence training course with Dietmar Duller, which offered a wealth of information and practical demonstrations, proving you can never know everything! Dietmar was extremely professional and made the course great deal of fun and I was able to learn so much in a short space of time. I came away having gained enormous insight and knowledge within the Corporate Flight Attendant role and cannot recommend this course enough.

Kate Sollacher