Multi-turn tool-use scenario.
Tools involved: VehicleControlAPI

User requests (one per turn):
user: I've noticed my car is nearing empty, and I could really use some extra fuel in the tank. I'm gearing up for a long drive, and I need to make sure I'm set with a full tank before hitting the road.
user: While I'm at it, let's make sure the car's ready for the adventure. Start up the engine for me, and confirm everything is good to go, like the doors being locked and the handbrake engaged.
user: Finally, I'm plotting a trip through San Francisco, specifically aiming for 123 Pine St, San Francisco, CA 94016. Set the GPS for a seamless ride to that location. Anticipating a smooth drive ahead!

Expected function call sequence:
VehicleControlAPI.displayCarStatus
VehicleControlAPI.fillFuelTank
VehicleControlAPI.startEngine
VehicleControlAPI.get_zipcode_based_on_city
VehicleControlAPI.set_navigation