public string Remove(Classes.UserSession userSession, string username)
        {
            User user = null;
            string resultString = "";
            try
            {
                if (userSession.IsUserInFavouriteList(username))
                {
                    userSession.RemoveFromFavourites(username);

                    resultString = String.Format(Lang.Trans("{0} has been removed from your favourite list"), username);
                }
                else
                {
                    resultString = Lang.Trans("No such user!");
                }
            }
            catch (NotFoundException)
            {
                resultString = Lang.Trans("No such user!");
            }
            return resultString;
        }