Final answer:
Velma anticipated comfortable seating due to explicit promises from United Airlines combined with her past experiences. However, the service did not meet her heightened expectations, illustrating the importance of airlines adhering to their service promises.
Step-by-step explanation:
Velma's service expectation levels were shaped by e. past experience and explicit service promises. When she saw the article praising United Airlines for increasing the room between passenger seats, she formed an expectation based on that explicit promise. However, her past experiences with discomfort due to her height might also contribute to her expectations of airline seating. It is important for airlines to manage service expectations effectively by ensuring their explicit service promises match the actual service delivered.