warning into madro

I have a macro that does a reset of all inputed data entered by the user, it would be useful if the user gets a warning for this and have the choice to select 'Continue' or 'back'. A sort of small pop-up screen.
I know it's possible, but can't find how I did this many years ago

did you mean

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?

Yes, something like that

looks difficult, i mean i don't understand
the msg box should have the "bla bla bla" with two buttons "Y" and "N"
When the users click on 'Y' the macro does his yob, when the user click on 'N' the pop-up screen disappears.
Also, the pop-up screen should appear at the sheet where it is activated.