One of my friends is having her party in Cali in August, but I'm not sure if I can go because I have two other trips planned this summer including an international one.

I'm most worried about cost. If I go, I'd only go for part of the trip and fly in later than everyone else. There was also a group text sent out that I'm a part of and some people already have their tickets. And some folks are already talking about splitting costs. I want to go but with my other trips coming up, that would be a lot of money.

I also want to show up to this since I value our friendship.

What should I say to the group if I'm still deciding if I'll go?