When a ManyChat bot receives user input, a Google Calendar event is created and a message is sent to the user via the bot. A push notification is also sent to your Android device with details of the appointment. Check out part 2 to learn how your bot can send a message after you accept or reject the appointment.
This is a predefined template that will make the creation of your scenario much easier. Of course, you can always expand and customize the scenario to meet your own individual needs.