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: There are 4. Cambridge artworks, cambridge museum of technology, gallery at twelve high st, and st barnabas press gallery. Sentence2: Yes please. Book it for 2 on Wednesday at 11:45. Sentence3: The booking for 10:45 was successful, your reference number is X91CKCCU . Is there anything else I can do for you? Sentence4: I'm looking for a concert hall in the east. Sentence5: You are all set, look for a grey bmw, the phone number is 07332820178, can I assist with anything else? Sentence6: I will need a taxi to go between the two places please. Sentence7: I'd like to get some information on a restaurant in the same area, maybe serving indian food? Sentence8: We have 9 options in the centre for Indian food, any preference on price range? Sentence9: How about a museum in the east? Sentence10: I'm pleased I could assist you. Sentence11: I would recommend Saffron Brasserie then, the atmosphere is fantastic. They are expensive. Would you like to make a reservation there? Sentence12: Where will you be departing from? Sentence13: I would like to arrive at 10:45. Sentence14: Thank you for your help! Goodbye! Sentence15: Cambridge Artworks' number is 01223902168, Cambridge Museum of Technology is 01223368650, Gallery at twelve a high street 01223295264, and Saint Barnabas Press Gallery 01223902116. Can I help you with anything else? Sentence16: Cambridge Artworks please and going to Saffron Brasserie. Sentence17: I was unable to make a reservation at the time you wanted. Would you like to try another time Sentence18: I have no preference on the price range. Sentence19: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence20: I am sorry but there are no concert halls in the east. There is one in the centre of town, though. Do you want more information about it? Sentence21: No, thats it thanks! Sentence22: Please try 10:45. Sentence23: Thank you very much, could I have the phone number for each of those museums? Sentence24: Okay, when would you like to leave? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System