Add OASST Falcon-7B conversation prompt

conversation.py

@@ -432,6 +432,20 @@ register_conv_template(
     )
 )
 
+# OpenAssistant Falcon-7B
+register_conv_template(
+    Conversation(
+        name="falcon",
+        system="",
+        messages=(),
+        offset=0,
+        roles=("<|prompter|>", "<|assistant|>"),
+        sep_style=SeparatorStyle.NO_COLON_SINGLE,
+        sep="<|endoftext|>",
+    )
+)
+
+
 if __name__ == "__main__":
     conv = get_conv_template("vicuna_v1.1")
     conv.append_message(conv.roles[0], "Hello!")