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: Yes, please. That would be great. Sentence2: Here is that information,phone-01223302010 post code-cb11bg Address-183 East Road City Centre Sentence3: Thanks so much. That's all I needed tonight. Sentence4: It isn't allowing me to make that reservation, is there a different day I can try. Sentence5: We have several options, and most are in the center of town. I recommend Cotto! Sentence6: Actually, I would just like the address, postcode and phone number instead at this time. Sentence7: Thank you, I also need a 4 star hotel in that area for 3 people, 2 nights, starting Friday evening. Sentence8: Booking was successful. Your Reference number is : Z3CX53OL . Sentence9: The University Arms Hotel fits your specifications, would you like me to book it for you? Sentence10: Okay, please tell me what day you will arrive, how many days you will stay, and how many people Sentence11: I am looking for a restaurant that serves british food in cambridge in the moderate price range Sentence12: Let's try Sunday, please. Sentence13: I need it on Friday for 2 nights and 3 people. Thank you. Sentence14: Absolutely! May I please have the day and time and also the number of people attending? Sentence15: You are welcome, enjoy your stay in cambridge Sentence16: Can you make me a reservation please? Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System