Right maam,
I have took some information about that topic from the internet, because there is a huge difference between the styles of speaking english. The way they speak english is completely different from our. thats why i had some difficulty in understanding their complete conversation therefore i researched about that topic on internet and what ever i learned from there, i submitted here.
But, according to u, if it is wrong then i will research and submit my reply once again.
Thank you