Dynamically Add Text & Input Field

If a user types in some text in an input field on my wordpress page, then clicks a button underneath (submit), how do I get some text this to automatically appear underneath and another input field to appear as well? Example…

“Insert text:”
[Input Field 1]
[Submit]

// then after the user hits submit, it looks like the following:

“Insert text:”
[Text From User In First Field]
“More text here”
[Input Field 2]
[New Submit Button]

Thanks,
Charles