public bool Import(IEnumerable <string> csv, int userId)
        {
            try
            {
                foreach (string item in csv)
                {
                    var dates = item.Split(',');

                    DateTime from;
                    DateTime to;

                    if (dates.Length < 2)
                    {
                        continue;
                    }
                    if (DateTime.TryParse(dates[0], out from))
                    {
                        if (DateTime.TryParse(dates[1], out to))
                        {
                            _wrapper.AddNonAvailability(from, to, userId);
                        }
                    }
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                return(false);
            }

            return(true);
        }