Yes, you are required to generate your own target. Use groupby function on the ride_id column and aggegate by count or alternatively, copy this code below. it should generate the label for you.
ride_id_dict = {} 
for ride_id in df["ride_id"]:
    if not ride_id in ride_id_dict:
        ride_id_dict[ride_id] = 1
    else:
        ride_id_dict[ride_id] += 1