Determine if Google should introduce ads to Google Flights.

Focus on evaluating the potential impact of introducing ads to Google Flights on user experience, revenue, and competition. Start by analyzing the current user journey and how ads might disrupt or enhance that experience. Consider the revenue implications, including potential ad pricing models and how they compare to existing revenue streams. Assess competitive landscape and user sentiment towards ads in travel-related services. Finally, outline key metrics to measure success if ads are introduced, such as click-through rates, user engagement, and overall satisfaction.