Heidi extended her hand to the angel, pleased that he recognized her. She wasn't sure what she thought of God and angels and heaven and all of that since coming here and seeing all the awful things that could happen--especially when she thought about the superhuman powers that some of the people she loved most had that were both blessing and curse, but this particular angel seemed nice, and from what she had heard from Claire he was kind.
"It's a pleasure as well to meet you as well, Castiel. Welcome to the Hyperion. If you don't mind me asking, what brings you here today." She was curious, of course, if the angel needed help or was offering his services to help them with something...and if so, what?