I want to book some tickets for Matilda on 18th November, but just waiting for two weeks before in case of train strikes. I've been watching the availability go down and down, so much so I don't think it's looking likely that we will get the 230pm show - I'm just wondering, does this change/do they get cancellations closer to the time or can tickets be resold? If not, can we take a 6yr old to the later show?