Authors C LakshmannaDepartment of Computer Science Engineering (Data Science), GATES Institute of Technology, Gooty, Andhra Pradesh, IndiaN Renuka ChowdaryDepartment of Computer Science Engineering (Data Science), GATES Institute of Technology, Gooty, Andhra Pradesh, India Abstract The hospitality industry increasingly relies on customer feedback to evaluate service quality and improve guest satisfaction. Hotel reviews contain valuable unstructured textual data that reflects customer opinions, emotions, expectations, and overall experiences. However, manual analysis of large volumes of reviews is time-consuming, inconsistent, and susceptible to human bias. To address these challenges, this study presents a real-time sentiment and emotion analysis system that leverages Natural Language Processing (NLP), machine learning, and deep learning techniques to automatically interpret guest feedback. The proposed system performs comprehensive text preprocessing, including tokenization, stop-word removal, lemmatization, punctuation filtering, and text normalization, to improve data quality. Feature extraction is achieved through TF-IDF and advanced word embedding techniques such as Word2Vec, GloVe, and BERT. A hybrid sentiment-emotion classification framework integrating machine learning algorithms, including Support Vector Machine (SVM) and Random Forest, with deep learning models such as Long Short-Term Memory (LSTM) networks and BERT Transformers is employed to achieve high classification accuracy. In addition, the system performs aspect-based sentiment analysis to evaluate specific service components, including staff behavior, cleanliness, and amenities, while also providing emotion distribution visualization and trend analysis over time. By transforming unstructured customer reviews into meaningful emotional and sentiment insights, the proposed framework enables hotel management to identify service strengths and weaknesses, detect negative feedback at an early stage, enhance customer satisfaction, and support data-driven decision-making. The system demonstrates the potential of AI-driven text analytics to improve service quality and operational efficiency in the hospitality sector. Keywords Natural Language Processing (NLP) Sentiment Analysis Emotion Detection Hotel Reviews Machine Learning Deep Learning BERT LSTM Aspect-Based Sentiment Analysis Customer Feedback Analytics. Citation of this Article C Lakshmanna, & N Renuka Chowdary. (2026). Natural Language Processing for Guest Experience and Sentiment Analysis in Hospitality. International Current Journal of Engineering and Science (ICJES), 5(5), 32-39. Article DOI: https://doi.org/10.47001/ICJES/2026.505005 Licence Copyright (c) 2026 International Current Journal of Engineering and Science. This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International Licence. References B. Pang and L. Lee, “Opinion mining and sentiment analysis,” Foundations and Trends in Information Retrieval, vol. 2, no. 1–2, pp. 1–135, 2008.B. Liu, Sentiment Analysis and Opinion Mining. Morgan & Claypool Publishers, 2012.S. M. Mohammad and P. D. Turney, “Crowdsourcing a word–emotion association lexicon,” Computational Intelligence, vol. 29, no. 3, pp. 436–465, 2013.J. Devlin, M.-W. Chang, K. Lee, and K. Toutanova, “BERT: Pre-training of deep bidirectional transformers for language understanding,” in Proc. NAACL-HLT, 2019.E. Cambria, B. Schuller, Y. Xia, and C. Havasi, “New avenues in opinion mining and sentiment analysis,” IEEE Intelligent Systems, vol. 35, no. 2, pp. 15–21, 2020.V. Jain and S. Kulkarni, “Text classification using sentiment analysis,” International Journal of Computer Science and Information Technologies, vol. 5, no. 3, pp. 3850–3854, 2014.G. Miner et al., Practical Text Mining and Statistical Analysis for Business Intelligence. Academic Press, 2012.C. C. Aggarwal, Machine Learning for Text. Springer International Publishing, 2018.T. Chen et al., “XGBoost: A scalable tree boosting system,” in Proc. ACM SIGKDD, 2016.R. Feldman, “Techniques and applications for sentiment analysis,” Communications of the ACM, vol. 56, no. 4, pp. 82–89, 2013.P. Ekman, “An argument for basic emotions,” Cognition and Emotion, vol. 6, no. 3–4, pp. 169–200, 1992.R. Plutchik, “The nature of emotions,” American Scientist, vol. 89, no. 4, pp. 344–350, 2001.K. R. Scherer, “What are emotions? And how can they be measured?” Social Science Information, vol. 44, no. 4, pp. 695–729, 2005.S. M. Kim and E. Hovy, “Determining the sentiment of opinions,” in Proc. COLING, 2004.P. D. Turney, “Thumbs up or thumbs down? Semantic orientation applied to unsupervised classification of reviews,” in Proc. ACL, 2002.