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 have 2 guesthouses matching your criteria. The Finches Bed and Breakfast guesthouse is 4 stars and includes free parking and internet. Would you be interested in this? Sentence2: I am looking for a guesthouse with 0 stars. Sentence3: I'm looking for a guesthouse style place to stay. It needs to have free parking. Sentence4: I'm sorry, I can't find a guesthouse that meets those specifications. Is there anything else I can help you with? Sentence5: I would like to stay in the West Sentence6: I am looking for some places to go in the east of multiple sports. Can you help? Sentence7: Yes, the city centre north b and b is a zero star guest house in the north, with free parking and free wifi. Would you like it booked? Sentence8: The Cherry Hinton Village Centre sounds like exactly what you're looking for. Their phone number is 01223576412. Sentence9: Is there one in the north? Sentence10: There are many guesthouses that meet this criteria. Is there a specific area you would like to stay in? Sentence11: When would you like to leave/arrive by? Sentence12: Not yet. Can I get the phone number for the hotel first? Sentence13: Could you tell me what price range that hotel is in? Sentence14: You're welcome! Have a great day! Sentence15: Yes, the number is 01223312843 Sentence16: Certainly! I have booked you with a red skoda, whose contact number is 07790176286. Is there anything else I can help you with? Sentence17: I need a taxi to commute between the two. Can you help? Sentence18: city centre north b and b is priced as a cheap hotel. Sentence19: I will be needing to leave the hotel by 16:45. Can you arrange that? Sentence20: Okay great. That was all I needed. Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System