Implement the "add new reservation" form on the Reservations pop up according to the wireframe: <img width="364" alt="123558708-00010600-d798-11eb-9dda-8d116f0e6a5c" src="https://user-images.githubusercontent.com/104437323/220176617-d9ea342b-4ae1-4b54-b171-e9b1ea7e67d1.png">