Yes, you can edit this message and add/remove labels from the left side bar select "Schedule"--> "Settings" and locate "Email Confirmation to Customer"
Note: The reminder text message that is sent to clients is formatted as follows:
This is to confirm @CUSTOMER_NAME have successfully scheduled @SERVICE_NAME for @DATE @TIME (@TIMELABEL) at @LOCATION
Note: if you are not using any of the labels in your booking system such as Location you should remove the label from this section so it is not included in the content the customer receives.
@APP_NAME: Name of App/Name of Business
@SERVICE_NAME: Name of service
@TIME: Time that customer books appointment
@TM_LABEL: Today or Tomorrow text appended to the message depend on reminder (Only Use for Reminder)
@DATE: Date that customer books appointment
@LOCATION: location of provider
@PROVIDER_NAME: Name of provider
@CUSTOMER_NAME: Name of customer