TOPIC:

I am trying to use the Interactivity Dialog to ask the learner a dialog of questions, but there is no right or wrong response

The initial text is:
First, take a moment to think about the rules that you live by.

Next are the questions
Where did these rules come from
Think about negative rules and choose one rule that has had a negative effect on you.
Think about positive rules and choose one rule that has had a positive effect on you.
Which rules would you like to stop living your life by?
What impact would it have on your personal relationships if you were able to just ‘be yourself’?

The answers are personal to the learner and so there is not going to be a definitive answer. I want the answer to be anything the learner enters. Is this possible?

The Interactivity Dialog is more or less interactive like the Gap page. You have to give the possible answers and the user must type one of the options. If the user gives an incorrect answer, the first possibility is shown.
So, the user is not free in his answers and the answers are not kept. The interactive dialog is an exercise.
It is not possible to control answers of the learners himself?
What you want to do could be in the Interactivity > Model Answer.
I made a small example here .
Ronald