How to trigger journeys based on Location change.

Summary:

How to trigger journeys based on Location change. For Example, If an employee transfers from location A to location B, checklist to be trigger and vice versa but if an employee transfers from location A to C or from B to C, checklist should not be trigger. How to achieve this ?

Content (please ensure you mask any confidential information):

Checklist was already created and it's triggering for all the transfers but needs to add eligibility profile for the above mentioned case. Checklist to be trigger only if an employee transfers from location A to B and viceversa and not for other locations.