Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: I had to take a flight from St. Louis to Boston , from Boston to London , and then from London to Madrid . When I got to Madrid , I could n't find my luggage . It turned out it would n't be coming until 9 pm .

Question: What is the narrator griping about ?
Plane issues .
Losing his luggage.