 Like domestic flights rather than international flights because I feel like international flights They are like more likely to be confirmed and if there are any changes that will let you know But if for domestic flights I would like confirm that because I remember two winters ago I was flying from my home city to Beijing and then from Beijing to DC And then I know from Beijing to DC that one is for sure But then the flight from my home city to Beijing that morning was cancelled So I was glad I tried to confirm it the night before so like I didn't miss my flight So I just like took a train instead to Beijing so I feel like confirming flights would definitely be good But it's not like necessary