trivago reported its last earnings of 2021 yesterday, marking the end of a rollercoaster year. The online hotel search site was forced to cut costs during the pandemic as the travel industry shut down entirely, instead pivoting its strategy to meet customer demand in other ways. Matthias Tillmann, CFO of trivago, joined Cheddar's Opening Bell to discuss the company's results and why he's optimistic about the future of the travel industry in 2022.