I am trying to create a customer journey that will send an email within the same customer journey based on whether a contact registers for an appointment within the Appointment activity tile in the same customer journey.
See screenshot: https://www.screencast.com/t/0GwFOTddh

Scenario:
Contact submits web form to request more information.
---Receives Email 1
----Wait 3 days
---Send SMS message
----Wait 7 Days
----Send Email 2 (request for appointment)
----TRIGGER: If appointment scheduled, sent appointment confirmation
If appointment NOT scheduled, send financial aid email.
It does not appear that I am able to trigger on the creation of an appointment record or not, only reactions to an email within the customer journey. Is there another way to achieve this customer journey?
Best,
Valerie