That smile was devastating. She wanted him to keep smiling and never stop. His smile felt like every wonderful thing in life was combined and radiating it. She was rather surprised she wasn't in a puddle on the floor right now. Who was this guy?
"I'm sorry about your sister," she said quietly, and she meant it. She didn't know why, but she felt awful for him and wanted to make it better. She also felt rather impressed that he was so caring towards his sister. It was sweet of him to want to cheer her up with flowers.
"I'm sure flowers will make her happy, because you were thinking about her. Flowers always make me happy. And of course I can help you. At least, I think I can anyways. Does she have a favorite flower? That's a good place to start."