U.S. stock indexes drifted through a quiet Monday after the United States agreed to tax cars and other products coming from the European Union at a 15% rate, lower than President Donald Trump had earlier threatened.

Wall Street’s record-breaking, weeklong run ran out of momentum on Tuesday. The S&P 500 slipped 0.3% for its first drop after closing at an all-time high in six successive days. The Dow Jones Industrial Average sank 204 points, or 0.5%, and the Nasdaq composite shaved 0.4% off its own record.

As more people ask chatbots for financial advice, creating the right prompts is the key to getting useful answers.