DocTalk: Scalable Graph-based Dialogue Synthesis for Enhancing LLM Conversational Capabilities. - Jingfeng Yang 001; Hamed Bonab; Nasser Zalmout; Ming Zeng 001; Sanket Lokegaonkar; Colin Lockard; Binxuan Huang; Ritesh Sarkhel; Haodong Wang (CoRR, 2025)