In this task, you are given dialogue, and you have to find the most critical location in the given conversation.

Hi, can you tell me about Kolkata please?
Here is a fun fact.. Kolkata was spelled Calcutta up until January 2001.
So it's in India? What else can you tell me about it's history?
It is! Actually the second larges city in India after Mumbai. During the mid 1980's Mumbai actually overtook Kolkata.
Really? Why was the name changed?
Not .Sure why it was changed. but when it is called Calcutta, it includes the suburbs.
That's where Mother Theresa is from. Can you tell me something about their Media use/usage?
Although I do not have any information about the media, I can give you a little history. It is declared a presidency city, it became the headquarters of the East India company by 1773.
Fascinating! Anything else you can share?
Throughout the late 18th and 19th century the city was a centre of the East India Company's opium trade.
Thank you so much for all your help!
You are very welcome.
Kolkata