Hi Nishit please find my screen shots:
i logged in from Richard Wailse (browser Edge) ; and reserved (205) 479-0000 and added to cart despite the resurved number it shows “0” reserved numbers https://webmaklay.com/wp-content/uploads/2025/07/rsrv-2.jpg

then i logged from Mark H (browser Chrome) ; i found same number in the cart https://webmaklay.com/wp-content/uploads/2025/07/mark.mp4

Same number on cart for two users and for Richard it does not show in reservation