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: Please see if you can find me an Indian restaurant on the East end Sentence2: Curry prince is a restaurant serving indian food. They are located at 451 Newmarket Road Fen Ditton. Their phone number is 01223566388. Sentence3: I need a place to stay also. free wifi please, but no parking is needed Sentence4: There are 4 Indian restaurants in the east side. Do you prefer a certain price range? Sentence5: Okay. We have you booked at the Cambridge Belfry. Your reference number is QM0PRNJW . Sentence6: There are none in that price range. Would you like to try a different price range? Sentence7: I am sorry we don't have any cheap ones in the area Sentence8: How about a hotel that is really cheap? I need a room for 7 for 3 nights on friday Sentence9: I have 3 places to choose from. 2 are guesthouses and 1 is a hotel. Do you prefer one over the other? Sentence10: Yes, I'd prefer a guesthouse that's cheap if any are available. Sentence11: Sure, I think any price range is actually fine, as long as it's indian and in the east. I'll need their address and phone number. Sentence12: Cheap price and address and phone number Sentence13: Thanks so much. Have a great day. Goodbye Sentence14: You're welcome. You do the same. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System