Sorry about my example is confusing the issue.

Here is it in stages

1) Kitchen is called off (16/01/2015)

2) Arrives in warehouse (23/01/2015)

3) Loaded on to North Vehicle (26/01/2015)
3b) Loaded on South Vehicle (26/01/2015)

4) Delivered to Customer North (27/01/2015)
4b) Delivered to Customer South (28/01/2015)