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
create a dialogue between a customer and a flight attendant for a plane ride
user
customer: hi, i would like to inquire about the snacks available on the flight. 

flight attendant: of course! we have a selection of snacks available including chips, crackers, and candy bars. would you like to purchase any snacks?

customer: yes, i would like to purchase a snack. do you have any healthy options?

flight attendant: yes, we offer a variety of healthy options such as yogurt, trail mix, and fruit. would you like to choose any of those? 

customer: yes, i'd like to purchase a yogurt. how much does it cost?

flight attendant: the yogurt costs $3. would you like to purchase that? 

customer: yes, i'd like to purchase the yogurt. thank you!

flight attendant: you're welcome, here's your yogurt and have a great flight!
assistant