sir jo log is train main safar karte hain unse pucho kisi ko ye is liye pasand hogi ki who uske destination station per us time pahuchti hogi jab use pahuchna hai, kisi ko is liye pasnd hogi ki other train main reservation na milne ke karan wo is train main ja sakta hai, etc. ...... is liye main kahta hun ki koi train bekar nahi hoti .