For any of your Appointments, Products, Services or Events your page will have a Book Me button next to your booking calendar. Some Bosses like this text while others prefer to change the text to say something else.
If you would like to change the button text just follow the steps below.
Open the service settings
Click on Texts, Fonts and Colors at the top of the screen
Select Text Customizations
Scroll down until you see Button Text
Enter your preferred button text