Multiple text entry boxes with one submit button

Hi everyone I'm fairly new to this so please bear with me, I'm looking to do something (I thought) would be fairly straightforward. I want to create multiple text entry boxes that have no validation requirements and will accept any content with one submit button for the slide.

The conditions I want to set up on the slide is for all the entry boxes to be filled and will continue to next slide, or if any of the entry boxes are empty it will prompt 'please' fill out all of the boxes' or if any of the entries are duplicated it will prompt 'each entry must be unique'. If you could point me in the direction please would be great.

I have search web/forums for this still no luck.

Thanks in advance!