Jack is about to reply to him when his head turns around and he seems to look into the distance, as if he's heard something that Sunday cannot. Like a dog hearing a whistle from far away. He turns his attention back to Sunday. "I have to go." He's being called in a way that no phone can get him, because people can pray his name and get his attention.

"My number is 8884903. We can talk again. Thank you for trying to help me." Jack is still trying to be polite but a moment later he completely disappears. A blink and he's gone, although Sunday might be able to hear the sound of wings whooshing around him moments before he goes.