I am doing the part II assignment and would like to hear some advices from the fellow SCEAs. The use case diagram given seems to indicate the Travel Agent and Customer have the same interaction with the system. How do you guys factor in the TravelAgent in the diagrams? (Duplicating the interaction with other components as Customer seems to make the diagrams very messy and less readable.) Thanks.
I am also yet to decide about the same. Also I think that though they have shown similar interactions in use case diagram, travel agent should be able to access any of the customers account while customer can access only his/her account. So depending on user role the processing would be different.