Alright, so that reaction made the offer worth it - even though it would have stood otherwise, because it wasn't like he was going to take it back. It was easy enough for him to get passes like that, and it wasn't as though his family was going to be using any, so why wouldn't he give one to someone who would clearly appreciate and benefit from it?
"Yeah, of course," he replied with a shrug, as though it was nothing. "Just let her know and once we figure out which we can do it for, you'll get an owl back with details."