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, just me starting on the day of my restaurant visit. Sentence2: Do you have a cheap restaurant that serves indian food. In the mood for curry. Sentence3: How many in your party? Sentence4: Just me. I'd like to eat at 16:45. Sentence5: I needed that for 4 nights, did you get that for me? Also I'd like a reference number. Sentence6: I would like one in the centre of town that is in the cheap price range. Sentence7: I'd be happy to check on that for you. In fact, I have 4 different restaurants. Three are in the centre of town and I have one in the north. Sentence8: I have a table for you at 15:45. Your reference number is BVDPM13V . Sentence9: Is there anything else I can help you with today? Sentence10: Great, can you book me a table for Wednesday? Sentence11: Try kohinoor they are located at 74 Mill Road City Centre. Sentence12: Not at this time, thank you! Sentence13: Thank you for all of your help. Sentence14: Alright, I got that booked for you. Four nights at Alexander Bed and Breakfast starting Wednesday. Your reference number is BOL6JBIT . Sentence15: I'm sorry, that isn't available? Could you perhaps try a different time or day? Sentence16: It was a pleasure helping you today. Remember to contact us anytime if you need more assistance. Sentence17: I found two that fit your criteria, would you like me to book for you? Sentence18: Could you also help me find a guesthouse in the same area as the restaurant and in the same price range. I would like free WIFI. Sentence19: I booked you at the alexander bed and breakfast Sentence20: Okay, let's try 15:45 instead? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System