Given the task definition and input, reply with output. In this task, you are given dialogue, and you have to find the most critical location in the given conversation.

Hello, I wanted to learn about the Economy of New Zealand.
Sure. The New Zealand post office had a monopoly over telecommunications in New Zealand until 1987 when Telecom New Zealand was formed, initially as a state-owned enterprise and then privatized in 1990.
Nice, that's interesting. Never imagine a post office can have such power in a country's telecom.
Yes it is interesting. On April 7 2008. New Zealand and China signed the New Zealand-
Signed exactly what?
Trade agreement. The first such agreement China has signed with a developed country
So, they are also China's product consumers. Did that boost their economy? Having that ties with China?
Sorry I don't know about that but I do know in recent decades however a "brain gain" has brought in educated professionals from Europe and less developed countries.
I understand. What about their environment? Do they have interesting facts about it?
New Zealand is part of Zealandia , a micro-continent nearly half the size of Australia that gradually submerged after breaking away from the Gondwanan super continent.
oh my, is that causing a major effect on their country or in the world?
A large proportion of New Zealand's aid goes to theses countries and many Pacific people migrate to New Zealand for employment.
I bet they are in good hands in New Zealand. Well, thank you for those interesting facts. I have learned tons of information.
You're welcome.
New Zealand