Kayak is the latest business to turn to AI in an effort to make planning a holiday simpler, and has introduced a new ChatGPT-based tool for finding the cheapest possible flights. The travel search engine says anyone who has found a flight connection online on any website can use its new PriceCheck tool to quickly find out whether there is a cheaper alternative for this route before booking. The idea is that you take a screenshot of the website with the flight connection and upload it to the Kayak app – just like you would upload and share a picture on WhatsApp or some other messenger. This can…