Of course, I understand your frustration with the flight delay. Seeking compensation for such inconveniences is a reasonable step to take. To initiate this process with Cathay Pacific, I recommend heading over to their official website. You can browse this site to find the dedicated section or page specifically addressing compensation claims due to flight delays. Once you're on their website, look for a section related to “Customer Support,” “Help Center,” or “Contact Us.” Within that section, you should be able to find information on how to file a compensation claim for your flight delay. They may have an online form for you to fill out or provide specific contact details for their customer service team who can assist you further.