Is it me, or has the United website an issue with issuing tickets for children? I tried multiple times to book an itinerary for 2 adults and one child (2-4 years, 5-11 etc. doesn't matter), and the system would not let me "Continue" to the next page. Remove the child and it works. The United agent on the chat experienced the same issue from her end but could not help further (suggested to call the "Web assistance"...). As far as I can tell, it's not related to the browser (tried several, cleared cache etc., same issue). Any advice or help would be welcome.