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: I'm afraid there aren't any scottish places in town. Would you like to try a different cuisine? Sentence2: i have 2 places that serve french food and are expensive. one is restaurant two two. the other is cote. which would you like? Sentence3: Does that also have free parking? And I forgot to mention I'd prefer a guesthouse. Sentence4: Sure, the Cambridge Belfry fits that bill. It has great reviews and is cheap. Can I get more information for you? Sentence5: Book for me 1 person and 2 nights starting from wednesday. Sentence6: I have made the reservations and your reference number is 4WK86HPM . Sentence7: thanks alot. have a good day Sentence8: Is there a French restaurant? Sentence9: You're welcome! Have a great day as well. Sentence10: I'll book a table for Cote. 1 person at 16:15 on the same day as the hotel booking. Sentence11: In that case, the Cambridge Belfry would not work. It's a hotel, not a guesthouse. The Acorn Guesthouse has wifi, parking, is moderately priced and has 4 stars. Sentence12: Your booking was successful.Your reference number is : 6UPHIRT7 . Is there anything else you need help with today? Sentence13: Hi, yes, I'm looking for a 4 star hotel to stay in. The only amenity it has to have is free wifi. Sentence14: Yes I am looking for someplace to eat that serves Scottish food that is in the expensive price range. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System