I'm looking to find out if you can do some more creative award bookings over the phone?

I've found availability for DXB-LHR, arrives at 1520, then I found next day availability LHR-BOS departing at 1305. So it's a < 24 hour connection, which in other programs I'm in counts as a connection as long as it's INTL INTL. If I search DXB-BOS, I just get an all economy routing that I'm not terribly interested in. So I'm just trying to find out if I can call and book the routing I want (in this case) and obvs there's usually a phone booking fee with it, I'm fine with that if I can accomplish what I want here.

FWIW I can also find J space for DXB-RUH-LHR, but if I search DXB-BOS, DXB-RUH-LHR-BOS (all of which are legal and normal 3-4-5 hour connections) doesn't get offered. But, data point, DXB-RUH-LHR-JFK is...for the life of me I can't figure this out.