Hi Amanda. To really come through and work as a logline to help market and pitch your idea, it needs to communicate more about the story. A little more appropriate info on your protagonists than just "two women" is required together with some idea as to what this road trip is for. What's at stake? What is the point of the story? What do your protagonists hope to achieve? Who or what is standing in their way? I know it's a lot to fit in, but that's why loglines are a tough nut to crack. If you'd like some more help with loglines, do by all means get in touch for a chat.