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: Where is it located? I'm looking for something in the East. Sentence2: I want to make sure that it's a hotel and not just a guest house. It sounds like it's not a guest house though, is that right? Sentence3: This is an expensive hotel. Sentence4: Thank you very much! Sentence5: No thank you. That will be everything. Sentence6: Express by Holiday Inn Cambridge is a hotel. Sentence7: Express by Holiday Inn Cambridge is a 2 star hotel with free wifi. It is in the east, and is in the expensive price range. Sentence8: The ashley hotel is a 2 star moderately priced hotel that includes free wifi. Would you be interested in booking a room at this location? Sentence9: It is a hotel, not a guesthouse. Sentence10: Do they also have free parking? Sentence11: Yes, it has free parking and wifi. Would you like me to make a reservation for you at the express by holiday inn cambridge? Sentence12: What type of place is the Express? Sentence13: Is there anything else I can help you with today? Sentence14: I am looking for a 2 star hotel that also includes free wifi. Sentence15: What type of hotel is it? Sentence16: Glad to help. Thank you and goodbye! Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System