"Well..." Jamie considers this. He doesn't really get how she can help him out in this instance, and he's still thinking there'll be that bag-carrying in his future, but what else is he going to do with his time? Without selling his memories, he's going to be wandering around trying to find the shops he wants anyway. So why not go with someone else for a bit?

"I suppose I've not got much to do at the moment. Might as well go with ye."