I'm trying to modify an air segment in a reservation of Sabre. From my knowledge, I assume that the steps to do it will be:
- Search for changeable air segments
- Calculate fee to modify segment(s) A to segment(s) B
- Add new segments B to reservation
- Remove old segment(s) A
- Pay modification fee
- Commit changes
- Verify that the air segments in reservation is changed successfully
According to this Sabre document looks like I can only perform step 3 and 4. For other steps I cannot find any relevent documents. Can anyone help me how to do the other steps ? Thank you.