Travel costs and extra animal?

I've been asked to do a last-minute booking that's not in my home town. It would take me 2-3 hours to get there on the train. Is it normal to charge for train fare? The house-sit is for one week. It means I'm unable to do a meet-and-greet beforehand due to time constraints and geography. My other question is she has requested to book me for the two dogs, but now wants me to feed the cat as well for no extra cost. This is my first booking through Rover (I've done many privately before), so I'm unsure how to handle this. Many thanks.