Build an OpenAI Assistant with Google Drive Integration

Workflow Overview
This workflow automates the creation and management of a custom OpenAI Assistant for a travel agency ("Travel with us"), leveraging Google Drive for document storage.

How It Works

1. Create the OpenAI Assistant
   Node**: OpenAI
   Action: Creates a custom assistant named "Travel with us" Assistant using the gpt-4o-mini model.
   Instructions:
   Respond only using the provided document (e.g., agency-specific info).
   Stay friendly, brief, and focused on travel-related queries.
   Ignore irrelevant questions politely.
   Credentials: Requires OpenAI API key.

2. Upload Agency Document
   Google Drive Node**:
   Action: Downloads a Google Doc as a PDF.
   OpenAI2 Node**:
   Action: Uploads the PDF to OpenAI with purpose: "assistants".
   Output: Generates a file_id.

3. Update the Assistant with the Document
   OpenAI Node**:
   Action: Updates the assistant to include the uploaded file.

4. Chat Interaction
   Chat Trigger**:
   Activates when a message is received ("When chat message received").
   OpenAI Assistant Node**:
   Action: Uses the updated assistant to respond to user queries.
   Memory: Window Buffer Memory retains chat context for coherent conversations.

Set Up Steps
Prepare the Document:
Store your travel agency guide in Google Drive (e.g., as a Google Doc).
Update the Google Drive node with your document’s ID.

Configure Credentials:
Google Drive: Connect via OAuth2 (googleDriveOAuth2Api).
OpenAI: Add your API key to all OpenAI nodes.

Customize the Assistant:
Modify the instructions in the OpenAI node to reflect your agency’s needs.
Ensure the document includes FAQs, policies, and travel info.

Test the Workflow:
Trigger manually ("Test workflow") to create the assistant and upload the file.
Send a chat message (e.g., "What are your travel packages?") to test responses.

Dependencies
Google Drive Account**: To store and retrieve the agency document.
OpenAI API Access**: For assistant creation and file uploads.