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: Not yet. Can I get the postcode for Gonville Hotel? Sentence2: I'm looking for a place that offers free parking to it's guests. Got any hotels that offer that? Sentence3: I would like it in the centre, moderate range in price. Sentence4: Do you have a price range in mind or type? Sentence5: Almost every hotel and guesthouse in Cambridge has free parking! What area and/or price range are you looking for? Sentence6: Do they have free wifi? Sentence7: how about the yippee noodle bar? Sentence8: I also need a restaurant near the hotel. Sentence9: That would be fine. Please make reservations for 1 on monday at 15:30. Sentence10: I will do that for you now. Sentence11: Yes actually they both do. Would yu like to book one of them? Sentence12: Sure! The post code for the gonville hotel is cb11ly. Let me know if there is anything else I can do for you. Sentence13: I want to be in the centre. Sentence14: Your welcome. I am glad I could be of help. Sentence15: Thank you for helping me. Sentence16: Here are the two choices of hotels in the Centre area that meet your criteria: Gonville Hotel and University Arms Hotel. Do either of these interest you? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User