I am New to Power Apps. I want to reset a dropdown value & 2 date picker values based on the selection of another dropdown in edit mode.

In the above image when I select No / Yes in the 1st dropdown I want the values of other dropdown & date pickers to be blank or get reset.
Also, when I save again to the list, the record needs to be updated with blank values for those particular fields.
I tried using Reset function on Change of 1st Dropdown but still it's not working.
This is what I used in on change of 1st dropdown => Reset(DataCardValue266); Reset(DataCardValue267); Reset(DataCardValue268);
Please suggest me a solution to reset the values