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

Hello I would like to learn about Saint Petersburg.
Hello. Saint Petersburg is a Russian city in northwestern Russia, near the Gulf of Finland of the Baltic Sea. Over five million people live St. Petersburg as of 2015. and it is the second biggest city in Russia. It is a major port, connecting with the world's shipping paths through the Neva River and the Baltic.
Thank you, that's informative. Do you have information about their twin towns and sister cities?
Milan and Venice were formerly twin cities of Saint Petersburg, but suspended this link due to St Petersburg's ban on "gay propaganda".
Wow! that's intense and interesting. Tell me more.
There are Sister cities in the Commonwealth of Independent States and Baltic States.
Thanks for that info. Do you have information about their government?
Russian President Dmitry Medevedev has already backed Valentina Matviyenko for the position of Speaker to the Federation Council of the Federal Assembly of the Russian Federation and her election qualifies her for that job.
Do you known when did President Dmitry Medvedev served the Russia.
I'm sorry I don't have that information but I can tell you that in 2006 the city legislature re-approved Matviyenko as governor.
Thank you so much! I think that's all I need.
You're very welcome! Have a nice day!
Saint Petersburg