Pop Up Notification After Clicking the Save Button

Hi, So I’ve been developing a application form to submit leave request. My client has a request that everytime I click save button to save a record about the leave form request, it must shown a confirmation pop up notification, then there are 2 buttons to cancel the process and submit the process which the save process is triggered in the notification button. I suggest by trying using wizard but throughout the process, it is kind of complicated. Does everyone have a suggesstion or know any types of solvings or any other way to encounter this problem?? Thanks for the help guyss, have a nice day!

It is not in the design principle of Tryton to raise warnings or popup on save.
Usually this is handled the transition of a workflow which seems to match your description because you want a submit and cancel button.