Abstract: A customer is detected at a drive-thru and a natural language voice dialogue session is established with the customer. The customer provides voice inquiries and order details via speech during the session, the speech is translated to text sentences, and commands are issued to a transaction system through an Application Programming Interface (API) based on the text of the sentences. The transaction system updates a display associated with the drive-thru based on the commands processed for the session and places an order for the customer with a Point-Of-Sale (POS) terminal associated with the drive-thru based on the order details.