allow users to add multiple sets of fields

I am gathering Names & email address' for training. It is possible that when the person fills out this form, they could have 10+ names & email addresses to fill in. ho can I make this nice and clean without having to put a large amount of data fields to account for the person that has a lot of staff?

Our configurable list widget will allow you to create a set of fields and will also allow users to dynamically add as many sets of those fields as they would need:

http://widgets.jotform.com/widget/configurable_list

Here is an example form with the widget added:

http://form.jotformpro.com/form/43222928180957?