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: Of course! The postcode is cb23bj and it is located at Unit su43, Grande Arcade, Saint Andrews Street. Can I assist you with anything else? Sentence2: Hi, I am looking to go to a place with multiple sports in the centre. Can you help me? Sentence3: No, that is all thanks. Sentence4: I'd like to definitely see something in the centre of town. How about a museum? Can you recommend a nice one? Sentence5: Excellent, can I get the address and post code please? Sentence6: If you need anything else, feel free to contact us again. Have a nice day. Sentence7: There are 5 museums in the centre of town. All with free admission. My favorite is Castle Galleries on St. Andrews Street. Sentence8: No, the only multiple sports place is in the east. Would you prefer that one, or perhaps a different type of attraction in the centre? Sentence9: Is that a multiple sports attraction in the centre? How much does it cost? Sentence10: The cherry hinton village centre is available if that works for you? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System