Castiel & Zatanna Zatara
He nodded at Zee's question, "I have been here... almost two years?" He seemed to have lost track during the time he had been here. But it's not like it was something he desperately needed to know. He was stuck here until the Dome was tired of him, like everyone else here.
"What about you? How long have you been here?" He thought he had seen her around, and perhaps she had been here longer than he had. It was possible.