Multi-turn user requests:
user: First, you need to know how much gasoline you added to your car, expressed in liters. You've just filled up, so how many liters of fuel does that equate to?
user: The amount filled is 30 gallons.
user: Let's take the initiative to start the engine in start mode. We want to ascertain that it operates smoothly with the increased fuel level.
user: Inspect each tire's condition and confirm they are in optimal shape.
user: Upon verifying the tire pressure, we should share our findings on Twitter to keep everyone informed. Post the tweet message 'Tire pressures are optimal!'. Utilize hashtags #CarMaintenance and tag @VehicleGuru for professional insights.

Tools involved: TwitterAPI
VehicleControlAPI
Expected function-call sequence: VehicleControlAPI.gallon_to_liter
VehicleControlAPI.fillFuelTank
VehicleControlAPI.startEngine
VehicleControlAPI.check_tire_pressure
TwitterAPI.post_tweet