This line chart visualizes hotel booking availability over a period of time, with a smooth curve rendered in yellow on a pink background. Built with D3 v5, the code uses `scaleTime` and `scaleLinear` for the axes, `line` with `curveBasis` for the smoothed path, and `axisBottom` and `axisLeft` for tick marks. The data is loaded from a GitHub gist via `csv` and parsed into dates and numeric values before being drawn as an SVG.