I have a form where the user fills out first name and last name.  The user is interviewing a person and recording the responses on the form.  On the last page of the form, the user must declare they have accurately represented the person being interviewed.  I would like to have the interviewee's name appear in the declaration.

On page one, the person enters the first name and last name.

On the last page, I have the following...

The first name and last name are supposed to appear after the word "by".  So in this case, it would say "I declare the information entered on this form reflects the feedback provided by testing forms", but it is blank instead.

This is how I entered the variables into the label.

I declare the information entered on this form reflects the feedback provided by {/dataset/First_Name} {/dataset/Last_Name}.

What am I missing? Do I need to JavaScript a change or an update of some sort?  If so, please help. I am not experienced in coding.