Creating a Dialog box with two fields to fill once the Stage of the deal is changed to certain values.

Creating a Dialog box with two fields to fill once the Stage of the deal is changed to certain values.

Hi there Zoho community,

Appreciate your help. Let me present my problem at this point. We want to enable a dialog box whenever the stage within the Deals module is changed to Closed Lost (which has 3 variations).

In that case, we would like to create a pop-up dialog box with a request to fill out two other fields within the deal module related to Stage. For example, Reason picklist and Multi-Line Description field. Is that even possible of doing right now? I'm finding some possible solutions but all of them are requiring some type of writing a code. I'm even fine with that just need some small point of guidance.

Totaly aware of creating workflow rule which will trigger the function. 

Is it possible?

Thank you for your help.