Every company needs to have a proper customer care department, which is why the number of such establishments is rising. These places witness a high volume of calls every day, many of which do not require human intervention. Thus, by replacing a certain number of human employees with virtual assistants, companies can save on operational costs, while maintaining the quality of customer service. Nowadays, people are more likely to switch brands because of unsatisfactory customer service than they are if the product itself isn’t good, simply because they have options, which creates a strong need for an efficient customer service department. Other places people will likely encounter a voice assistant today are smartphones, laptops, websites, chatbots, smartwatches, and smart speakers (including Amazon Echo, Google Nest, and Apple HomePod). But, how do these programs understand what people are saying and communicate with them? This is done via a range of technologies, such as speech recogni...