Send confirmation Email to two different Emails

Hi dear community,
I would appriciate your help.

I habe an event calendar and the registration form contains two fields for two different email adresses. After succesful registration to an event the confirmation email shold be sent to this different email adresses. One and the same customized confirmation email shold go to the first email (attendee) and also to the second email (like notification).

How can I implement it?

Thank you fpr you help.

I use free version of “the event calender” and the “registration tool the evenet calendar”.

Best regards alexpoljot