In this task, the input is a set of dialogues between a user and an assistant. You need to find the dialogue that is basically a response given to a question or an aspect of the user.
One example: Hi. I want information about Namibia.
Nmbia is a country in southern Africa.
Do you have information about the media there?
What about it?
Interesting! What can you tell me about the politics and government?
Solution is here: Nmbia is a country in southern Africa.
Explanation: This is a good example. The output is the response to the question asked by the user.

Now, solve this: Sure thing. Is there anything else you would like to know?
What can you tell me about Helsinki?
No, thank you.
The Helsinki Metropolitan Area (Greater Helsinki) consists of the cities of Helsinki Capital Region and ten surrounding municipalities. Helsinki has Finland's largest fairgrounds, the Messukeskus Helsinki.
Sorry I don't know that exact answer, but I do know that there are a majority of intercity passenger services in Finland that originate or terminate at the Helsinki Central Railway Station.
Solution:
The Helsinki Metropolitan Area (Greater Helsinki) consists of the cities of Helsinki Capital Region and ten surrounding municipalities. Helsinki has Finland's largest fairgrounds, the Messukeskus Helsinki.