What capacity issues exist in the airline industry and what is the impact of empty seats on the profitability of an airline?

TWO parts:

Part 1: Give an example of a company that is a manufacturer. How can they establish an ERP system that allows communication between departments to flow properly and to effectively manage capacity needs? (Be sure to connect your analysis based on Chapter 10 of the textbook).

Part 2: What capacity issues exist in the airline industry and what is the impact of empty seats on the profitability of an airline? (You will need to conduct external research for this section to further support your analysis).

The book is Managing supply chain operations(2nd edition)