Hi all!
In case I move over to CAI, would the following itinerary be valid:

CAI-DXB-FRA-...-JFK-...-SFO-HKG-SIN-SYD-SIN-DPS-SIN-DXB-CAI

or even, mileage permitting:
CAI-DXB-FRA...-US Town-...-SIN-FRA-DXB-CAI

???
It is just about going CAI-DXB-FRA
and also coming back either that way or SIN-DXB-CAI.
Since LH dropped F service to CAI one most get creative. Thanks in advance for your replies!