• Head over to Adalo's website and sign up if you haven't already.
• After logging in, hit "Create New App."
• Pick a template that suits your needs, or go with "Blank" to start from scratch.
• Give your app a name and choose whether it's for mobile or web.

• Click on the "Database" tab.
• Add a new collection by clicking the "+" button and name it "Bookings."
• Add properties like User, Date, Time, Service, Status, etc.

• Make sure there's a "Users" collection in your database. If not, create one.
• Add properties to the "Users" collection such as Email, Password, Name, Phone Number, etc.

• Create screens for the booking system, like:
• Welcome/Login Screen: Users log in or sign up.
• Home Screen: Display booking options.
• Booking Screen: Users fill in details for a new booking.
• Booking Confirmation Screen: Confirm booking details.
• Booking Management Screen: Show current bookings for the user.

• Drag and drop the login and signup components from the component panel onto the Welcome/Login Screen.
• Link the login/signup actions to the "Home Screen."
• Set the database to link to the "Users" collection to authenticate users.

• Go to the "Booking Screen" and add input fields for Date, Time, Service, and any other necessary information.
• Add a form submission button.
• Set the action to create a new record in the "Bookings" collection when the form is submitted.

• On the "Booking Confirmation Screen," display the entered booking details.
• Configure the screen to show booking confirmation messages or options to edit the booking.

• On the "Booking Management Screen," create a list component showing bookings from the "Bookings" collection.
• Filter the list to show bookings related to the logged-in user.
• Optionally, add edit and delete functionalities to manage bookings.

• Set up push notifications or email notifications for booking confirmations, updates, or cancellations.
• Use Adalo’s notification actions for this purpose and configure them accordingly.

• Preview the app and go through the booking process to ensure it works as expected.
• Make any necessary adjustments to the design or functionality based on testing feedback.

• Once testing is complete and the booking system works flawlessly, publish the app.
• Follow Adalo’s guidelines for publishing on either the App Store, Google Play, or as a web app.

These steps should help in creating a custom booking system in Adalo. Everything can be adjusted and customized based on specific requirements.