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 am looking for some entertainment in town. Sentence2: They both work for me. Can I have the addresses of both please? Sentence3: The broughton house gallery is free entrance. Can I help you with anything else? Sentence4: Do you know what you are looking for? Do you want a museum or maybe the Cinema? Sentence5: I'm looking to take a train on Friday from Stevenage. Sentence6: There is broughton house gallery located in the centre or cambridge artworks located in the east. Both are free. Do either work for you? Sentence7: Thank you, have a great day! Sentence8: That's fine. How many tickets would you like? Sentence9: Broughton House Gallery is located at 98 King Street and Cambridge Artworks is at 5 Greens Road. Sentence10: I think Broughton House Gallery will work better for me. Can you tell me the entrance fee, please? Sentence11: What museums are there? Sentence12: Book me the train leaving at 7:54 please. Sentence13: No, I think that does it. Thank you for your help. Sentence14: I have 10 trains departing from Stevenage on Friday. They depart every 2 hours beginning at 05:54. Can I book one for you? Sentence15: You will arrive by 08:43 and your reference number is W1RIE69Y . Sentence16: Just one ticket please. Can you also tell me the arrival time? Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User