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: The Museum of Archeology and Anthropology is located in the center. Would you like more information? Sentence2: Yes, you have. Thank you. Sentence3: Yes I'd rather find one in the centre, a museum. I just need the entrance fee and the address. Sentence4: Thank you for using our services. Have we met all of your needs? Sentence5: I need the entrance fee and address please. Sentence6: Of course. The departure time is 9:59. The duration of the trip is 88 minutes. Can I help with anything else today? Sentence7: I am looking for information in Cambridge Sentence8: Could you check again. A museum in the centre. Sentence9: That's alright. But now what I do ned is to find a train from cambridge going to london liverpool street. Could you help me? Sentence10: admission is free and it's located at university of cambridge, downing street Sentence11: If we can be of further assistance, please contact us again. Thank you. Good-bye. Sentence12: I don't think you do but it's not in the database. Would you like the number so you can check before you go? Sentence13: No, that will be all. Thank you. Sentence14: Museum and I need postcode adress and entrance fee please Sentence15: no such attractions in the north Sentence16: I need a museum to visit in he centre. Sentence17: Is Cambridge Artworks in the center of town? I have get to liverpool station by 11:30 on Saturday. Sentence18: Train is TR1887 arrives at 11:27. Shall I book it ? Sentence19: Cambridge Artworks is a great museum! The address is 5 Greens Road. The postcode is cb12ef. It's also free to enter. Sentence20: Do I need tickets? Sentence21: I'm also looking for a train to london liverpool. Sentence22: There's a lot to do in Cambridge. Is there a certain type of attraction you'd like more information on? Sentence23: what time is best for you? Sentence24: I need to arrive by 11:30. Are there any train that has arrival by that time? Sentence25: Can you just tell me the travel time and departure time for the TR1887 please? Sentence26: sure why not? Sentence27: No the museum is in the east, do you want an attraction in the center instead? What station will you be departing from? Sentence28: There is no museums in the centre. Can I help you with anything else Question: Who has spoken the sentence 16? (A) User (B) System
Output: 


Answer: (A) User