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: Its an expensive hotel. Sentence2: That's all I need for now. Thanks for all your help! Sentence3: There are 33 expensive restaurants in the centre. Are you sure you have no preference for food type? Sentence4: Okay, the postal code is: PE296FL. Can I assist with anything else? Sentence5: What type of hotel is it? And what is the post code? Sentence6: Yes can you book it for 3 people on Wednesday at 17:30? Sentence7: Thanks, now can you book me a taxi? I want to be picked up from my hotel and taken to the restaurant by 17:30. Please give me car type/contact number Sentence8: I'm not sure. Do they have internet? Sentence9: When will you be staying there? Sentence10: None, it is my first time in the town and I like every food, I will go with what you recommend. Sentence11: I also would like to eat in the center of town. Sentence12: You are quite welcome! Enjoy your stay! Sentence13: Can you tell me the name of the hotel please and then we can talk about booking a room? Sentence14: It is the Huntingdon Marriott Hotel Sentence15: Your taxi has been booked. The car type is a blue Toyota and the contact number is 07594906784. Is there anything else I can help you with? Sentence16: Don't really have a food preference but would prefer something expensive. Sentence17: Okay. Well, I've heard great things about the Cambridge Chop House. It's a British restaurant. Would you like me to book that for you? Sentence18: I have a hotel that I really want to stay at today. Sentence19: Can I get the postcode please? Sentence20: Yes, they have internet available. Sentence21: There is a lot of restaurants in the town centre. What type of food are you looking for? What is your price range for the restaurant? Sentence22: Your booking was successful. Here is your reference number, CUZ69HSD . Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System