Overriding prompts in Batch Action command

I have a question about using Find and Replace in an Action.

For a bar chart with negative values, Illustrator will generate the value on the axis using a hyphen (e.g., -1, -2, -3). I would like to change the hyphens to en dashes (–1, –2, –3).

I have 150 graphs, so the easiest way to do this would be to use an batch action on all graphs in a folder. I first flatten the graph and then do a find-and-replace:

The trouble is that I get prompted at each find and replace:

Of course I can click Find, Replace All, OK, Done each time, but this essentially defeats the purpose of creating an action.

Is it possible to suppress the Find and Replace window and set the action to Replace All without prompting?