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'm looking for info on a restaurant called La Tasca. Sentence2: There are 18 colleges in town. Is there a certain area you would like to visit? Sentence3: Have a good day, goodbye. Sentence4: The price range for La Tasca restaurant is in a moderate range. Sentence5: That's really helpful. Thanks. I think thats all I needed. Have a nice day. Bye. Sentence6: And what's the post code that goes with that address? Sentence7: I will take the address, phone number and fee for the one you recommend Sentence8: I would recommend Trinity College. They are in the centre of town. Their entrance fee is 1 pound. You can find them on Trinity Street. Their phone is 01223338400. Sentence9: What is the price range? Sentence10: Yeah, I need information about colleges in town. Can you help me with that? Sentence11: La Tasca is a moderately-priced spanish restaurant in the city center. It is located at 14-16 Bridge Street. The phone number is 01223464630. Do you want reservations? Sentence12: The postcode is cb21uf. Anything else can I do for you? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System