Conversational Interface in Online Sales
	
		11199
		
			
					Conversational Interface paper
				
		
		published in 2001
		by Joyce Chai, Jimmy Lin, Wlodek Zadrozny, Yiming Ye, Margo Stys-Budzikowska, Veronika Horvath, Nanda Kambhatla and Catherine Wolf
			 in 			
				
Sales
	 
	
	
		
		
			
		
		
		This paper describes the evaluation of a natural language dialog-based navigation system (HappyAssistant) that helps users access e-commerce sites to find relevant information about products and services. The prototype system leverages technologies in natural language processing and human-computer interaction to create a faster and more intuitive way of interacting with websites, especially for less experienced users. The result of a comparative study shows that users prefer the natural language-enabled navigation two to one over the menu driven navigation. In addition, the study confirmed the efficiency of using natural language dialog in terms of the number of clicks and the amount of time required to obtain the relevant information. In the case study, as compared to the menu driven system, the average number of clicks used in the natural language system was reduced by 63.2% and the average time was reduced by 33.3%.