[TYPO3-project-seminars] Integrate field "description" in confirmation e-mail

[Yvonne Canonica]

Hello

I tried to integrate the field description into the e-mail confirmation 
to the one who subscribed to the event (seminars.tmpl).

In seminars.tmpl I included:
<!-- ###FIELD_WRAPPER_DESCRIPTION### -->[###LABEL_DESCRIPTION###]
###DESCRIPTION###<!-- ###FIELD_WRAPPER_DESCRIPTION### -->


In the confirmation e-mail, it stays empty an looks like that:
[label_description]
###DESCRIPTION###

Has someone an idea?
Thanks for help.

Yvonne