Redeem JMB on Air France and JOON
 

I would like to redeem JAL mileage on Air France flights. I already transferred 180,000 SPG and have to decide how much more SPG points transferred.

1. ICN->CDG(Stopover)->FCO(Destination)->CDG->ICN, All Air France flights.
Is this route possible?? Stopover at CDG possible??

2. I checked that all flights I want is available and have talked with JMB agent about this booking but agent told me that Air France intra-european flights were moved to Air France's subsidiary, JOON, last year. So she said I cannot make a reservation to FCO through CDG because JOON is not a partner of JAL.

However, the JOON flights can be booked in JAL website!!! What the... I cannot believe agent's words.

https://cimg0.ibsrv.net/gimg/www.fly...d0f865a26d.png

I want to book my route via website but cannot book ICN->CDG->FCO via website. Interestingly, ICN->CDG bookable, CDG->FCO bookable, but FCO->ICN error message.
I would like to know whether it is possible to book JOON flights by JMB. The JOON flight number begins with AF.

Thank you in advance.

multicity booking?