Translation booking form

I am using the event manager Pro and dutch is the primary language. I installed the WPML and the “Events Manager and WPML Compatibility” plugins. I have a few problems:

– I want to translate my booking form (mostly component labels) using a .po file, is this possible? Or do I have to create two different forms which I do not prefer.

– The biggest problem are the response messages from the booking form when, for example, required fields are empty. These are still in dutch and I have no idea why the english version is not displayed, this because the event manager placeholders are in English.

I hope someone could help me