Notification when quote and new owner been updated

I am trying to create a basic automation.

Notify the new owner of a task, with the new quote which was recently added.

How can I implement the following logic

Step 1: The user is updating a new quote for the task (e.g. “I just added a new quote” )
Step 2: The Current owner (e.g. Dan) changes the Task owner (people) to the “new owner” (e.g. John)

At this point I would like the “new owner” (John) to receive a notification email with the new quote which was added.