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 that in the centre area and a museum? If it is please let me know the address, phone and entrance fee. Sentence2: Alright, I have booked you at Home from Home for two nights, reference number OASAAHHB . Sentence3: I have cheap and moderately priced guesthouses in the centre. What would you like, cheap or moderate? Sentence4: I would like to find a place to stay next weekend Sentence5: I just am looking for a place to stay in the north that includes free parking and should be a guesthouse. Sentence6: Sure, how about the broughton house gallery? Sentence7: Thank you! Have a wonderful day! Sentence8: Price doesn't matter. I need it for 3 people for 2 nights, starting thursday. Can I get the reference number? Sentence9: No, that's all I needed. Goodbye! Sentence10: We are happy to help. Do you have anything else you'd like assistance with? Sentence11: Thank you so much. I'm also looking for a good museum in town. Sentence12: Thank you so much for all your help! Sentence13: Yes, it is. The address is 98 king street, the entrance fee is free, and the phone number is 01223314960. Sentence14: Sure, what day would you like to begin your stay and how long will you be staying? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System