1. A computer-implemented method for a third-party company to assist companies in providing customer support to their customers, the method performed by one or more servers of the third-party company and comprising: receiving authentication information of a first customer service representative from a first device, wherein the first customer service representative assists customers of a first company; updating a data store of customer service representatives using the authentication information of the first customer service representative, wherein the data store of customer service representatives comprises information about a plurality of customer service representatives; transmitting software to the first device to cause the first device to present a user interface to allow the first customer service representative to assist customers of the first company; receiving identifying information of a first customer from a second device; receiving a first message from the second device seeking support from the first company; retrieving, from a server of the first company, company data, wherein the company data comprises information about at least one of the first customer or the first company; selecting an intent of the first message from a plurality of possible intents by performing semantic processing of the first message; selecting the first customer service representative using the data store of customer service representatives; selecting a template from a plurality of templates using the selected intent, wherein the selected template is associated with one or more intents; generating update data by rendering the template using the company data, wherein the update data comprises information about an update to a portion of the user interface presented to the first customer service representative; transmitting the update data to the first device, wherein the update data causes the software running on the first device to update a portion of the user interface presented by the first device; receiving from the first device, event data corresponding to an input of the first customer service representative at the first device; and transmitting a second message to the second device using the event data.