Do you have any single rooms available?
Do you have any tickets available?
Do you have any shoes in size 20 available?
Store Owner: Hello, can I help you?
Customer: Yes, I’m looking to buy a leather jacket.
Store Owner: What kind of leather jacket are you interested in?
Customer: I was wondering, do you have any black leather jackets available?
Store Owner: Sure we do. Why don’t you sit down and I’ll get you some to try on.
Customer: OK. Thanks.