Single azure service for 5 conditions

Question

What azure service we can use for the following conditions:
1.For handling multiple request at a time

2.for tracking whether a task is queued,in-progress or completed

3.for deciding which request to process first when multiple request is there

4.for deciding whether output needs to be saved in database after task is finished

5.for notifing the user after task is finished

We can use azure service bus for the 1st three conditions but I am searching for a azure service which can handle all the 5 conditions.