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: Is one of them in the centre area. I would like one close to the college. Sentence2: Sure, I would like the largest college available Sentence3: Unfortunately, I haven't found anything. Would you like me to search for another type of attraction, or another location? Sentence4: Thank you. Can you also find a turkish restaurant that is moderately priced? Sentence5: We'll try Efes, could you book me a table for 2 on Thursday at 11:15? I'll need the reference number also. Sentence6: gonville and caius college Area-centre Phone #-01223332400 Post code-cb21ta Address-trinity street Entrance fee-free Sentence7: There are two that match your requests. Anatolia and efes restaurant. Would you like me to book one for you? Sentence8: So happy I could help! Enjoy the rest of your day! Sentence9: You are all set at the Efes on Thursday at 11:15. Your reference number is NZ89K99X . Is there anything else I can help you with? Sentence10: Sure. Are there any colleges in the centre? Sentence11: Yes, there are 13 colleges located in the centre. Can I help you narrow down the results? Sentence12: They are both located in the centre. Efes restaurant is located at King Street City Centre. Would you like to reserve a table? Sentence13: No that is it thank you. Sentence14: Are there any entertainment attractions in the centre of town? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System