public void CreateComment(int caseId, Person person, string text)
        {
            if (caseId <= 0)
            {
                throw new ArgumentException("Case id missing");
            }
            if (person.Id <= 0)
            {
                throw new ArgumentException("Person id missing");
            }
            if (text.Length <= 0)
            {
                throw new ArgumentException("Text can not be empty");
            }

            client.CreateComment(caseId, person.Id, text);
        }