How can I return value from onResponse of Retrofit v2

I want to return a string value from my function. But I do not know how to handle it? I tried final one-array solution but it did not work out.

Here is my code:

public String revealCourtPlace(String courtID)
{

    BaseService.getInstance().getUniqueCourt(Session.getToken(),courtID).enqueue(new Callback<JsonObject>()
    {
        @Override
        public void onResponse(Call<JsonObject> call, Response<JsonObject> response)
        {

            JsonObject object = response.body();
            boolean success = object.get("success").getAsBoolean(); //json objesinde dönen success alanı true ise
            if (success)
            {
                JsonArray resultArray = object.get("data").getAsJsonObject().get("result").getAsJsonArray();
                for (int i = 0; i < resultArray.size(); i++)
                {
                    JsonObject jsonInfoResult = resultArray.get(i).getAsJsonObject();
                    String courtName=jsonInfoResult.get("name").getAsString();
                }

            }

        }

        @Override
        public void onFailure(Call<JsonObject> call, Throwable t)
        {

        }

    });

    //return ?
}