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: What day would you like to book? Sentence2: Can you tell me the price range? I also need the address. Sentence3: Before I can book it, I would need some more information. How many days you would like to stay? Sentence4: There at three different price ranges. Do you prefer cheap, moderate, or expensive? Sentence5: There are a handful of locations in the area that suit your needs. I would recommend Rosa's Bed and Breakfast, a four star hotel with free wifi at an affordable price. Sentence6: rosa's bed and breakfast is a cheap hotel. their phone number is 122 351 2596. Sentence7: Thank you that's all the info I needed today Sentence8: Please book it for 4 people at 11:45 on Monday. Sentence9: I also need a taxi to take us from the hotel to the restaurant that will arrive by 10:45. Can you do that for me? Sentence10: I'll take Pizza Hut Cherry Hinton. I'd like a table for 4 at 11:45 on Monday. Sentence11: I would be happy to book that for you, but first I want to confirm you want to start your stay on Monday is that correct? Sentence12: I was able to book a taxi for you. It is a grey Toyota and the contact number is 07075458208. Is there anything else I can help with? Sentence13: It does not matter. But do tell me the address and price range of the place you book for me. Sentence14: You're very welcome, glad I could help! Have a good day. Sentence15: I have 2 italian restaurants for you. I have Pizza Hut Cherry Hinton and Frankie and Benny's. Can I make you a reservation at one of those? Sentence16: It fills both of those criteria. Do you want me to book it? Sentence17: I was able to reserve a table for you. The reference number is 8HB1J70L . Is there anything else I can help you with? Sentence18: What is the address and price range of Rosa's Bed and Breakfast? Sentence19: I want to find a place to stay on the south side. I want free wifi too. Sentence20: How about 10:45? Sentence21: i would like to book it for seven days, four people, can you do that for me? Sentence22: I am sorry but there is not an availability meeting your criteria. Would you like to change your day or time so I can try again? Sentence23: That sounds great, as long as it has free parking and is a guesthouse type of hotel. Sentence24: That is correct. I'll need a restaurant booked as well, in the same area and serving Italian cuisine. Question: Who has spoken the sentence 22? (A) User (B) System
Output: 


Answer: (A) User