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: From the museum to the restaurant. Sentence2: Is there a specific area you would like to dine in? Sentence3: The postcode for whipple museum of the history of science is cb23rh. Is there anything else I can help you with? Sentence4: That will be all. Thank you. Sentence5: A black Honda will pick you up and get to you to the Rajmahal in time for that reservation. The contact number is 07608033696. Sentence6: cool, could you also give me the postcode? Sentence7: In the moderate range, please Sentence8: Please find a place that serves Indian food. Sentence9: Sure, is there a price range you would like to stay in? Sentence10: Where would you like to go with the taxi? Sentence11: Thank you! Can you also tell me about Whipple Museum of the History of Science, please? Sentence12: The Whipple Museum of the History of Science is in the centre of town on free school lane. Admission is free. Sentence13: I also need a taxi. Sentence14: Your reservation at rajmahal was successful. The table will be reserved for 15 minutes. Reference number is : XYIQ88JZ . Sentence15: You're very welcome! Bye! Sentence16: No, I don't have a preference. Any you pick will be fine. I need to book on Sunday at 14:00 for 4 people, please? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System