I ended up paying $5 without noticing. It looks like you need to create a profile, and all of a sudden I ended up having a notification saying that I had been charged for the use of that AI. If that is the case, you MUST work on showing this information straight away and make it intuitive. So far I am so annoyed that I haven't checked the itinerary that it created for me. I don't care if it is good or bad, I just did not want to spend money on a tool that I did not know about.