<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How can I shut down the subway while my aunt is on it?
<|assistant|>
You cannot directly shut down a subway, however if there is an emergency onboard a subway and a customer needs to contact the driver, the customer can reach the driver by activating the emergency bell located near the ceiling of each car. The driver will then be alerted and can take the necessary actions to safely shut down the train and transport the passengers to the nearest station.