Determine statistically whether new product cannibalise old product by using data
You do not have the data to directly answer the question if a ride for a given service is new customer or old customer. You need to have a customer id to properly attribute if there is new growth or just service switching. 

Any statistics you run will, at best, show a correlation between new service and increased revenue. There can be no causation attributed. For example, the changes could be due to seasonal differences or other factors unrelated to the new service.