I'm having a nightmare trying to plan a journey on 27th December because it's very unclear whether a TOC's timetable is confirmed (at least as "confirmed" as it can be on a strike day) or not. For example, LNER's PDF timetable shows a 11:03 from KGX to LDS but their journey planner shows it as 'not available':

Earlier today this page was showing only a provisional timetable so it must have only recently been published. Are there no tickets available because the journey planner hasn't been updated yet or because there are no seats? How can I tell?
It's a similar story with EMR – they are showing a 10:02 STP to SHF train but, according to a conversation I had with them on Twitter, the timetable won't be confirmed until tomorrow:

Again, how am I supposed to know that's subject to change?
Apologies for what seems like a bit of a rant – trying to organise travel to see family is turning into quite the headache. Not that you'd guess it from my searches above but family are in Manchester. Due to engineering works on the WCML and strike action, I think it's probably best to avoid Avanti as it involves a rail replacement bus.
I guess my main question is am I missing something in the journey planners/any other resources to identify a confirmed timetable vs an unconfirmed one. Thanks for your advice

Earlier today this page was showing only a provisional timetable so it must have only recently been published. Are there no tickets available because the journey planner hasn't been updated yet or because there are no seats? How can I tell?
It's a similar story with EMR – they are showing a 10:02 STP to SHF train but, according to a conversation I had with them on Twitter, the timetable won't be confirmed until tomorrow:

Again, how am I supposed to know that's subject to change?
Apologies for what seems like a bit of a rant – trying to organise travel to see family is turning into quite the headache. Not that you'd guess it from my searches above but family are in Manchester. Due to engineering works on the WCML and strike action, I think it's probably best to avoid Avanti as it involves a rail replacement bus.
I guess my main question is am I missing something in the journey planners/any other resources to identify a confirmed timetable vs an unconfirmed one. Thanks for your advice