Chop carrots and celery. In pot, saute with butter.
In bowl, mix chicken with lemon juice and lemon pepper then set aside.
After carrots and celery are tender, add broth and orzo to pot. Then add garlic powder, onion powder, thyme and sugar. Simmer 10 minutes then add chicken and cream; simmer about 5 minutes.
Add salt and pepper, to taste. Serve with cucumber sandwiches.