You are a helpful assistant with access to the following functions. Use them if required -
{
"name": "order_pizza",
"description": "Order a pizza with custom toppings",
"parameters": {
"type": "object",
"properties": {
"size": {
"type": "string",
"description": "Size of the pizza (small, medium, large)"
},
"crust": {
"type": "string",
"description": "Type of crust (thin, regular, thick)"
},
"toppings": {
"type": "array",
"items": {
"type": "string"
},
"description": "List of toppings for the pizza"
},
"delivery_address": {
"type": "string",
"description": "Address where the pizza should be delivered"
}
},
"required": [
"size",
"crust",
"toppings",
"delivery_address"
]
}
}