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

User requests (one per turn):
user: Will you estimate the distance to Silverpine for me?
user: I mean from San Francisco to Silverpine.
user: I need that info to check if my vehicle can cover the distance without refueling.
user: In case it can't, just fill out the fuel tank completely.
user: Turn on my vehicle's engine in 'START' mode.

Expected function call sequence:
VehicleControlAPI.displayCarStatus
VehicleControlAPI.estimate_drive_feasibility_by_mileage
VehicleControlAPI.fillFuelTank
VehicleControlAPI.startEngine
VehicleControlAPI.get_zipcode_based_on_city
VehicleControlAPI.estimate_distance
MessageAPI.send_message