Respond Visitor

In a place which provides internet, the merchant order visitor to buy food.
The merchant : "Please, buy my food, if you want to use internet!"
Visitor : "OK. "
The merchant: "Almost everyday you come here, but you never order my food."
Visitor : How do I order your food, if the price of food is expensive?
The merchant: " This is very cheap. Fried rice."
Visitor : How much?
The merchant: 15.000 IDR
Visitor : I order it