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: Ok alexander bed and breakfast it is a guest house located in centre and is cheap with 4 stars. The address is 56 saint barnabas road. post code cb12de Sentence2: What area would you prefer? Sentence3: We have 16 options available that may suit your needs. Can you tell me what price range you are interested in? Sentence4: There are 18 options, do you have any other preferences such as area or price range? Sentence5: That doesn't matter. I just need the price range, address, and postcode. You pick the type. Sentence6: Thanks. Could you tell me what kind of food the Peking Restaurant serves? Sentence7: Thank you, goodnight. Sentence8: I need one in Cambridge and I would like a 4 star rating. Sentence9: I have no particular preference on price range. Sentence10: Thank you for your help. That's all I need for now! Sentence11: I need a place with free parking. Sentence12: Hello, I am looking for a guest house. Sentence13: Great, I can help you, let me just get some more information. Is there a specific location or price range you'd like to stay within? Sentence14: You are welcome. Thank you for using our service. Goodbye! Sentence15: The Peking Restaurant serves expensive Chinese food. Sentence16: Okay. Glad I could be of help. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User