How to join two flights into a single PNR or ticket [i.e. baggage would be automatically transferred and missed connections will be handled]
Say I have two flight segments A to B and B to C with three hour overlay. A to B is by (say) United and B to C is by another Airline where United may or not may not have a codeshare.
Now I want to build a single ticket from A to C in an single PNR so that baggage is automatically transferred and missed connections will be handled.
How can I do it?