MS Access question

Lets say I have a field called FullName. In the design view of a query, if I add [Input here:] as the Criteria of the field FullName, then when the query is executed, a window pops up saying [Input here:]. It works OK if the sql query is
…………………..
WHERE FullName = [Input here:];

However what I want is
………………………
WHERE FullName LIKE ‘*[Input here:]*’;
It does not work. Can someone tell me how to make this work using the small popup window? I don’t want the user to handle any SQL, they should just type a name, for example, John, in the popup window and the query pulls out all names containing John.

Thanks so much!

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