How to type into popup window

Hi

The manual process which I want to do automation will be like following.

When I click on the search option

The new pop up will come and then I need to enter some value into it and click on select and submit
Then that popup will be closed …the value I entered in popup will be taken into main webpage field.

Here the issue is bot is not identifyying the new popup.

Note: the automation which I want to do is a banking application and due to privacy rules I couldn’t share the screen shot.