Hello @yosua yansen!
First of all you need to evaluate the number of records per entity in the second API (from what I could verify it is the API with the descriptions that you want to show on the screen), and if it is possible to store them locally. If the premise is true, you will avoid excessive API calls, and you will have client-side data, which will make your application faster and more efficient. You should also evaluate if it's possible for once a day to synchronize information that is stored locally, bring the new information from the API.
A second option is inside the MainFlow -> TicketDetail -> GetTicketDetail action after calling the PostGetTicketById method, calling the various methods that return the descriptions using as input parameter the response of the call to the PostGetTicketById method, and changing the GetTicketDetail output parameter structure to contain the descriptions that you want.
I hope I understood what you want, and I hope that I helped you.
Best regards.