Travel App – UX Feedback

I am currently taking a UX course and am working on a personal project for the class. My idea is currently at the wireframe stage, and I would love to get some feedback on usability. For context, I am building an app to help organize and plan for trips.

https://invis.io/BASHF3T3RPZ

Does everything look/function as you would expect? Why, or more importantly, why not? Any other ideas or recommendations would be greatly appreciated!!

Thank you in advance!