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: I don't care but I need the area, entrance fee, and postcode of entertainment available in town. Sentence2: Yes, I have found 4. Ugly duckling, tang chinese, hk fusion and sesame restaurant and bar. Would you like any of these? Sentence3: I'm sorry, there are no Swiss restaurants in the area. Do you have another kind in mind that I could assist with? Sentence4: Which is your favorite? Can you get me the address, postcode, and phone number? I'll give them a call myself. Sentence5: I'm sorry I did not want British food. Are there any chinese restaurants instead located in the centre area? Sentence6: I'd recommend All Saints Church in the centre. Their postcode is cb58bs and they have free entrance. Anything else I can help you with? Sentence7: i would recommend the sesame restaurant and bar the address is 17 Hills Road City Centre, cb21nw. phone number is 01223358899. is there anything else i can assist with? Sentence8: Yes, I am looking for a place to dine. Can you recommend a restaurant in the expensive price range that serves Swiss food? Sentence9: There are many things to do in Cambridge; clubs, museums, churches, boating etc. What would you like to do? Sentence10: How about British food? Sentence11: No that is all. Thank you. Sentence12: I have several restaurants which serve British food in different areas of the town. Is there an area you prefer? Sentence13: Can you help me find some entertainment in Cambridge? Sentence14: You're welcome. Have a great day! Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System