diff --git a/instructor/distil.py b/instructor/distil.py
index 5d52972..3ea844f 100644
--- a/instructor/distil.py
+++ b/instructor/distil.py
@@ -4,10 +4,12 @@ import inspect
 import json
 import logging
 
-from typing import Any, Callable, List, Optional
-import uuid
+from typing import Any, Callable, List, Optional, Type
 from pydantic import BaseModel, validate_call
 
+import uuid
+import openai
+
 from instructor import openai_schema
 
 
@@ -85,6 +87,16 @@ class Instructions:
         indent: int = 2,
         include_code_body: bool = False,
     ):
+        """
+        Instructions for distillation and dispatch.
+
+        :param name: Name of the instructions.
+        :param id: ID of the instructions.
+        :param log_handlers: List of log handlers to use.
+        :param finetune_format: Format to use for finetuning.
+        :param indent: Indentation to use for finetuning.
+        :param include_code_body: Whether to include the code body in the finetuning.
+        """
         self.name = name
         self.id = id or str(uuid.uuid4())
         self.unique_id = str(uuid.uuid4())
@@ -132,6 +144,20 @@ class Instructions:
         def _wrap_distil(fn):
             msg = f"Return type hint for {fn} must subclass `pydantic.BaseModel'"
             assert is_return_type_base_model_or_instance(fn), msg
+            return_base_model = inspect.signature(fn).return_annotation
+
+            @functools.wraps(fn)
+            def _dispatch(*args, **kwargs):
+                openai_kwargs = self.openai_kwargs(
+                    name=name,
+                    fn=fn,
+                    args=args,
+                    kwargs=kwargs,
+                    base_model=return_base_model,
+                )
+                return openai.ChatCompletion.create(
+                    **openai_kwargs, response_model=return_base_model
+                )
 
             @functools.wraps(fn)
             def _distil(*args, **kwargs):
@@ -142,7 +168,11 @@ class Instructions:
 
                 return resp
 
-            return _distil
+            if mode == "dispatch":
+                return _dispatch
+
+            if mode == "distil":
+                return _distil
 
         if len(args) == 1 and callable(args[0]):
             return _wrap_distil(args[0])
@@ -173,6 +203,7 @@ class Instructions:
         base_model: BaseModel = type(resp)
 
         if finetune_format == FinetuneFormat.MESSAGES:
+            openai_function_call = openai_schema(base_model).openai_schema
             openai_kwargs = self.openai_kwargs(name, fn, args, kwargs, base_model)
             openai_kwargs["messages"].append(
                 {
@@ -183,6 +214,8 @@ class Instructions:
                     },
                 }
             )
+            openai_kwargs["functions"] = [openai_function_call]
+            openai_kwargs["function_call"] = {"name": openai_function_call["name"]}
             self.logger.info(json.dumps(openai_kwargs))
 
         if finetune_format == FinetuneFormat.RAW:
@@ -197,8 +230,6 @@ class Instructions:
             self.logger.info(json.dumps(function_body))
 
     def openai_kwargs(self, name, fn, args, kwargs, base_model):
-        openai_function_call = openai_schema(base_model).openai_schema
-
         if self.include_code_body:
             func_def = format_function(fn)
         else:
@@ -221,6 +252,5 @@ class Instructions:
                     "content": f"Return `{name}({call_args})`",
                 },
             ],
-            "functions": [openai_function_call],
         }
         return function_body