This chapter focuses on the nuances of asking about amenities in English, comparing and contrasting the usage of "Do they have" and "Is there." It uses examples with vending machines and other facilities to illustrate the differences and best practices.
Using "Do they have" when inquiring about amenities often sounds more natural than "Is there."
The choice of "do", "does", or "are" depends on the subject's grammatical number (singular or plural).