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: clare hall is in the west and the postcode is cb3al. Can I help with anything else? Sentence2: You're welcome, have a great day. Sentence3: Yes, could I also have their phone number please? Sentence4: Can you help me find a college to visit? Sentence5: Location is not important for me Sentence6: pick for me and I would need the area and postcode Sentence7: We have a lot of indian places in cambridge. Do you have a preference for price range or location? Sentence8: A white volvo car will pick you up at clare hall at 24:45 and the contact number is 07113259690. May i further assist you today? Sentence9: no thanks , that is all for today Sentence10: Does location matter? Sentence11: no reservation please, I also want to book a taxi to commute between the two places. Sentence12: Curry prince is a moderately priced Indian restaurant. Address 451 Newmarket Road Fen Ditton. Sentence13: Please tell about your departure and destination sites. Sentence14: I would like a moderately priced one on the east side. Sentence15: Their post code is cb58jj. Is there in any other information your needed? Sentence16: The phone number is 01223566388. Would you like me to make a reservation? Sentence17: I need to leave clare hall by 24:45 going to curry prince. I also need the contact number and car type please. Sentence18: what their postcode? Sentence19: I have 18 that match. Do you have any other preferences? Sentence20: Actually, yes. I am really in the mood for good indian food. Could you help me find somewhere new to try? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User