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: Can you also find an attraction called Milton Country Park? Sentence2: Booking was successful, your reference number is RKEFYHM0 . Will that be all? Sentence3: no, let's just book it. Sentence4: I'm looking for a place to stay, I would prefer a hotel in the expensive price range. Sentence5: We have lots of those. Did you have something a little more specific in mind? Sentence6: I would like it for 2 people and 4 nights starting from monday. Sentence7: Sounds like a plan. May please get the number of guests, the day of arrival, and how many nights you will be staying? Sentence8: I like the Express by Holiday Inn Cambridge. Can I get you some more information on that one? Sentence9: No. That will be all. Thanks so much for all your help. Goodbye Sentence10: Whatever you'd recommend. I would prefer free parking and wifi, though. Sentence11: Thank you, have a good day. Sentence12: Yes it is located at milton country park, milton and the postcode is cb46az Sentence13: Sure. Milton Country Park is a park. Can I help you with anything else today? Sentence14: Could you tell me what kind of attraction that is? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System