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 don't care about the type of cusine, I'd like it to be in the moderate range in the north. Sentence2: Great. I also need to find a restaurant for the same number of people on the same day for 19:00. Sentence3: There is a Chinese restaurant and an Indian restaurant in the North. Where would you like to go? Sentence4: No, thank you, that's all. Sentence5: I have 9 different places for you. Do you prefer a guesthouse or hotel? Sentence6: There are several that offer free parking in the north, do you have a price range? Sentence7: It was my pleasure to help. Have a great afternoon. Goodbye. Sentence8: Let's go with the chinese place. Can you book me a table for 2 on Thursday at 19:00? Sentence9: I'd love to help you find a place to eat. What kind of food do you like, and is there any part of town you prefer to dine in? Sentence10: I have your table reserved at the Golden Wok for Thursday at 19:00. The reference number is 5ZZI5FKL . Is there anything else I can help with? Sentence11: Ashley hotel looks like a good choice. Sentence12: ok i would like to book it for thursday for 2 people for 3 night im also looking for a restaurant in the same price range as the hotel Sentence13: Booking was successful reference number is I53II5MX . There are several restaurants is there any food preference? Sentence14: I am looking for a place to stay with free parking and need to be in the north Sentence15: I would like a hotel please. Sentence16: Yes, I'd like a moderately priced one, and I also need free wifi. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System