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: There are 13 attractions in the west area of town. Is there a particular type of attraction you would prefer? Sentence2: I have 22 that serve indian food. Is there an area or price range you prefer? Sentence3: Yes, there will be 8 of us on Thursday at 13:15. Sentence4: Great, that's all I needed! Sentence5: Whale of a Time is a great entertainment venue. They are located at Unit 8, Viking Way, Bar Hill. Can I provide any additional information for them? Sentence6: I'd like it to be an expensive place in the west, please. Sentence7: Thank you for contacting Cambridge TownInfo centre. Have a great time! Goodbye! Sentence8: I have 5 options here. I would like to suggest tandoori palace. Shall I go ahead with the booking? Sentence9: Booking was successful. The table will be reserved for 15 minutes. Reference number is : XJX7H5WZ . Anything else I can assist you with? Sentence10: I'm also need a restaurant that serves indian food. Sentence11: Hello, I'm looking for attractions in the west, can you help me out? Sentence12: I don't have a preference. Can you make a suggestion and provide the address? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System