In this task, you are given dialogue, and you have to find the most critical location in the given conversation.
One example is below.
Q: Hello! I would love to learn about Antigua and Barbuda today. 
 Antigua and Barbuda is an island nation in the Caribbean Sea. The country is part of the British Commonwealth. 
 That is very interesting! What can you tell me about "symbols" in Antigua and Barbuda? 
 Agave Karatto is a symbol of the country and was included in Meghan Markle's wedding veil which included distinct flora from all of the commonwealth's countries. 
 oh Wow! That is really cool! i never knew, Can you give me any other info about "symbols" in Antigua and Barbuda? 
 I do not have any further information about symbols but Calypso and soca music are both important to the culture. 
 Okay, I'd love to learn about Notables in Antigua and Barbuda. 
 I do not have any information about that but I can tell you that the islands became independent in 1981. 
 Can you tell me more about the Culture in Antigua and Barbuda? 
 They have the most technologically advanced hospital in the Caribbean. 
 I didn't know that! Can you tell me more about the Hospital there? 
 It was opened as part of an education mission and is called the Mt St John Medical Center in the nations capital, Saint John. 
 That is Interesting! I would like to hear more about the education mission if you have any information on that. 
 Unfortunately I have no further information regarding that but I can tell you that there are two foreign owned for profit off shore medical schools, the American Unversity of Antigua and The University of Health Sciences Antigua. 
 Thank you so much for all your information! 
 You are welcome!
A: Antigua and Barbuda
Rationale: Here the topic discussed is mostly about Antigua and Barbuda. Thus the output is correct.
Q: Tell me what you know about Iran. 
 Iran, historically known as Persia, is located in Western Asia. It is a part of the Middle East Region. It is bordered by Afghanistan, Armenia, Azerbaijan, Iraq, Pakistan, Turkey, and Turkmenistan. Would you like information on their history? 
 Maybe later, right now I need to know about the economy. 
 According to UNESCO and the head of research for Iran's Tourism Organization, Iran is rated 4th among the top 10 tourist destinations in the Middle East. Several factos have hindered their growth of tourism including: poor public image, unstable regional conditions, and weak advertising. 
 Anything more on that? 
 Tourism has been significantly impacted by the war in Iraq, but since 2004 there has been a slight, but steady increase. In 2009 there were approximately 2.3 million tourists. Most of the tourists visit from other Asian countries, though about 10% did travel from Europe and North America. 
 That is very interesting. What else do you know? 
 In the 2014-2015 fiscal year, Iran saw approximately 5 million tourists, which is up 4% from the previous year. 
 Now, I'd like to know something about the geography. 
 Isfahan has a population of approximately 2.2 million as of 2016, and is Iran's third most populous city. Interesting fact, Iran has one of the most diverse climates with having 11 out of the world's total 13 climates all present there. 
 11 out of 13, wow! Anything else? 
 The most populous area in the country is the western area near the mountains. They have the highest mountain in the Eurasian area which is 5,610 meters high. 
 You are a bundle of information, Thank You! 
 You're welcome!
A:
Iran