*just looks at you for a moment, and has the sudden thought that you're going to a lot of trouble just to secure another passenger for this last flight* (*or maybe it's SOP to let a potential customer gibber on about black holes and space-time?*)
*sighs inwardly* It does sound interesting, to be honest, but I don't know what my aunt's got planned tomorrow. I'm only in town until Sunday, so I'm trying to be available whenever she is. Not that that's hard, where I don't have a social life.