The connecting flight from Guangzhou to Bankok and Bankok to Kolkata

I have booked my ticket from Vancouver to Guangzhou in flight 330, it was the time 12:00 PM to 2:50pM, 12 Jul, at Guangzhou. But, I come to know from my booking agent that it will reach at 3:50PM, 12 Jul. So, I will miss the flight 363 for to reach Bangkok (departure time: 4:00 pM from Guangzhou. So, I also miss the flight Jet air ways flight 65 from Bangkok to Kolkata (departure at 8:05 PM, 12 Jul from Bangkok). I want to know, what flights will be fixed from Guangzhou to kolkata. Please reply within 12 hour. Thanks
abhijit maiti