as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
generate 5 interesting headlines for a news article about the world's most expensive roller coaster.
user
1. enter a world of thrills: riding the most expensive roller coaster ever 
2. experience a high-speed adventure: exploring the world's most expensive roller coaster
3. catch a thrill: take a ride on the world's most expensive roller coaster 
4. take the plunge: take a ride on the most expensive roller coaster in the world 
5. dare to dream: board the world's most expensive roller coaster and ride into adventure
assistant