[ It's a little thought experiment, anyway. It's not as if she knows the meaning of any of these flowers. He could pick a sunflower and that would be equally appropriate to her. ]

Mm... You have time to think about such things now. [ In his world, perhaps he had been thinking too much of video games-- she would joke. But it's more likely he had plenty of other things on his mind. Finding the time to allow himself to think freely and imagine, expressing his creativity, could provide him some solace. ] With this amount of time, you could even pick a flower for everyone of your family, too. Something for Prompto, another for Cor, Ignis...