How can I do this?

I want to host a video on my website, after... let's say the user has played the video, a popup appear and the video stops, asking the user to fill in a detail in the box just appeared, after he confirm the details, the box disappear and he can watch the video from where it stopped.

https://stackoverflow.com/questions/39765216/how-to-show-pop-up-in-video-js-after-time-interval This might help.
This is using the video.js library