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: Your reservation for 8 people at Ashley Hotel this Thursday for 4 days 3 nights was successful. Your Reference number is : NZP6RTB5 . Sentence2: Please pick on and make reservations for 8 people for 3 nights starting on Thursday. Sentence3: Okay the Ashley Hotel and the Lovell Lodge match your preferences. Sentence4: I need to be at the restaurant by 1:00. Sentence5: I'm sorry, what restaurant do you need to be picked up from? Sentence6: Well, both have a two star rating and are in the same price range, so I think they'd be about the same, quality-wise. Sentence7: I have a yellow Honda scheduled to pick you up at the hotel at 1:00. The contact number is 07039029314. Can I help with anything else? Sentence8: I need a place with wifi. Sentence9: Thank you very much for calling the Cambridge TownInfo centre, have a nice day. Sentence10: it has wifi and free parking,there is no info on the room Sentence11: I don't want to book it quite yet. Could you get me the phone number, postcode, and address? Sentence12: I have only one in the moderate price range serving modern European food. Would you like a booking there? Sentence13: It appears that I forgot to book a restaurant reservation. I need something in the south in the same price range as the hotel, please. Sentence14: I need to be picked up at the hotel, please. Sentence15: There are at least 9 hotels in the area. What price range would you like? Sentence16: What is the other place? Sentence17: Priced moderately please. Sentence18: yes and book it for me and I need postcode Sentence19: No that is all I need today. Thanks for the help. Sentence20: I have 9 restaurants in the south. What price range would you like? Sentence21: Can you help me find a taxi? Sentence22: Thanks now I need a cab to and from both places Sentence23: would you like the ashley hotel, cityroomz, or lovell lodge? Sentence24: Ashely hotel will be fine thank you Sentence25: Which place will be you departing from and and do you have to leave or arrive by a certain time? Sentence26: I have 2 hotels in the moderate price range with free wifi and 2 star ratings in the north location, would you like one of those? Sentence27: Which one is better? Sentence28: I'm sorry, we don't have any hotel rooms that meet those requirements. Sentence29: Restaurant alimentum is located at 152 - 154 Hills Road, postcode cb28pb. Their phone number is 01223413000. May I help with something else? Sentence30: The postcode for the Ashley hotel is cb41er, can you give me some more information to book your room? Sentence31: Moderate price range. And a 4 star rating, please. Sentence32: I am planning a trip to Cambridge and am looking for a hotel. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User