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: Can you book it for me and get a reference number ? Sentence2: Yes, I am looking to book a guesthouse in the cheap price range that includes free wifi. Sentence3: Can you please confirm that the hotel you've booked for us offers free wi-fi? I need to be able to work while I'm there. Sentence4: That will be all for today. You were a great help. Goodbye Sentence5: Thank you very much. Sentence6: Yes, I just need to know what day you're arriving, how many nights you're staying, and the number of people in your party. Sentence7: Would love to! What kind of food do you like? Sentence8: Hello! Can you give me some info on a restaurant please? Sentence9: Actually I am specifically looking for the Cocum restaurant, I would like to book for 7 people at 15:00 on monday if possible. Sentence10: I booked your restaurant table, and the reference number is CUL9VZ04 . Is there anything else I can help you with? Sentence11: Thank you. I'd also like a guesthouse in the cheaper price range. Can you help me with that? Sentence12: The same group of people and same day for 3 nights. Sentence13: Yes that's find are the in the moderate price range? Sentence14: no it is cheap. will that do for you? Sentence15: I have a table reserved for you and 6 other guests at the Cocum restaurant on Monday at 15:00. The reference number is BPE8LVHA . Sentence16: The finches Bed and Breakfast fits your needs. When would you like to stay? Sentence17: I was able to book you a room for seven people for three nights, starting Monday, at Finches Bed and Breakfast. Reference number is CUL9VZ04 . Is there anything else? Sentence18: Yes it has free wifi. Is there anything else I can help you with? Sentence19: there are several in the area of the restaurant. would you like to book the closest one? Sentence20: As long as it has free wifi Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User