If the lights come on but the ignition doesn't turn over when you boost your car, it is possible that the battery in the other car is not providing enough power. Make sure that the jumper cables are properly connected to both batteries, and that the engines of both vehicles are running. If the problem persists, it may be necessary to use a battery charger instead of another car to provide the power needed to start the engine.
Here are some other possible reasons why the ignition may not turn over when your car is boosted:
* The starter motor may be damaged.
* The ignition switch may be faulty.
* There may be a problem with the wiring in the ignition system.
If you are not able to resolve the problem yourself, it is best to have the car towed to a mechanic for diagnosis and repair.