Luk, and A. A. Kishk, "Miniature large-band half U-slot and half E-formed patch antennas," IEEE Antennas Propag. 3. Chow, Y. L., Z. N. Chen, K. F. Lee, and K. M. Luk, A design concept on broadband patch antennas with slot, IEEE Antennas Propag. Huynh, T. and K. F. Lee, "Single-layer single-patch wideband microstrip antenna," Electron. 6. Clenet, M. and L. Shafai, "Multiple resonances and polarisation of U-slot patch antenna," Electron. Simple options like manually checking annotations or having multiple workers label every pattern are costly and waste effort on samples which can be correct. Furthermore, as multiple prospects arrive and work together with the DTSM system concurrently, several beforehand unstudied issues come up. Our focus is using automobile routing heuristics inside DTSM to help retailers handle the availability of time slots in actual time. SA shares knowledge between slots and utterances and only needs a easy construction to predict the supporting span. Moreover, we complement the annotation of supporting span for MultiWOZ 2.1, which is the shortest span in utterances to assist the labeled value. The contrastive loss aims to map slot worth contextual representations to the corresponding slot description representations.