Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Positive Example 1 -
Input: Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Output: Answer: (A) User

Positive Example 2 -
Input: Sentence1: Guten Tag, I am staying overnight in Cambridge and need a place to sleep. I need free parking and internet. Sentence2: I have 4 different options for you. I have two cheaper guesthouses and two expensive hotels. Do you have a preference? Sentence3: No, but I'd really like to be on the south end of the city. Do any of those fit the bill? Sentence4: Sure. Does price matter? We can narrow it down and find exactly what you need. Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (B) System

Negative Example 1 -
Input: Sentence1: I am looking for a hotel named alyesbray lodge guest house. Sentence2: i have their info, what would you like to know? Sentence3: I would like to book a reservation for it. Can you help me with that? Sentence4: I sure can. First, I will need to know when you want your stay to begin and how many days you'll be staying. Also, how many people will be staying? Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (A) User

Negative Example 2 -
Input: Sentence1: Hi there! Can you give me some info on Cityroomz?. Sentence2: Cityroomz is located at Sleeperz Hotel, Station Road in the Centre area. It is a moderatley priced hotel with a 0 star rating. Would you like to book a room? Sentence3: Yes please. I need it for 7 people for 3 nights starting on tuesday. Sentence4: How many days would you like to book it for? Question: Who has spoken the sentence 4? (A) User (B) System
Output: Answer: (A) User

Now complete the following example -
Input: Sentence1: There are 44 attractions in the center of town. Is there a particular kind of attraction you'd be interested in? Sentence2: Can I get their phone number and address, too? I also need to book a train from Cambridge arriving by 10:15 on Friday. Sentence3: I apologize. I need to clarify that I'm looking for an entertainment type of attraction in the center of town. Sentence4: That's all I needed, thank you very much! Sentence5: Yes! The Cambridge University botanic gardens are in the centre and the entrance fee is 4 pounds. Sentence6: What trains do you have going to Bishops Stortford on Friday? Sentence7: You're very welcome. Have a lovely day. Sentence8: Are there any parks in the centre of town? Sentence9: There are 10 trains that go to Bishops Stortford, did you know what time you would like to arrive by? Sentence10: I am looking for suggestions on where to go in town, I would like it to be entertaining and in the centre. Sentence11: Tr6809 leaves Cambridge at 07:29. It has a travel time of 38 minutes and costs 10.10 pounds. Do you need any thing else today? Sentence12: The Museum of Archaelogy and Anthropology is free to enter. Would you like the address? Sentence13: Just some kind of entertainment. Sentence14: There is a nightclub called club salsa if you like to dance. Would you like more information? There are also some museums and cinemas if that sounds better. Sentence15: What is the entrance fee for the museum please. Sentence16: Thanks. Will you be able to book me that train? Sentence17: There are 3 trains that arrive before 10:15. One that arrives at 6:07, another at 8:07 and another at 10:07. Which would you prefer? Sentence18: I need to arrive by 10:15. I won't need you to book tickets for me, but the trainID, travel time, and price would be super helpful. Sentence19: There are no entertainment attractions in the centre of town in the system. Sentence20: The one for 8:07. I just need the train id, travel time, and price. No need to book it. Sentence21: The address for the botanic gardens is bateman street and the phone number is 01223336265. Sentence22: Sure thing what destination and departure are you looking for on your train? Question: Who has spoken the sentence 19? (A) User (B) System
Output: 


Answer: (B) System