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: Okay great thanks so much. Sentence2: Wandlebury Country Park is in the South. It is very nice. There is also Cherry Hinton Water Play in the East. Do either of those sound suitable? Sentence3: Wandlebury country park is in the south area, postcode cb223ae and phone is 01223243830. Sentence4: What area of town will you be in? Sentence5: It is a public park. You can just walk through it without a booking. Sentence6: Where is the closest pizza joint? Sentence7: Wandlebery sounds good, can I get the phone number, area, and postcode? Sentence8: Thank you for using our services. Have we met all of your needs today? Sentence9: Can you book it for me? Sentence10: Is there anything else that I can help you with today? Sentence11: Sure thing. I just booked it. Your ref number is Q2JZ0UIL . Sentence12: Well, I'm wanting to visit a park as well. Let's find that first. Sentence13: I'd like to find something in the south. It also needs to have free parking. Sentence14: I am happy to book, but lets find you a place. Any preference on area? Are ratings or type of place a factor? Sentence15: I need a cheap hotel for 8 people 2 nights starting Tuesday please Sentence16: Rosa's bed and breakfast is a cheap guesthouse in the south. It has 4 stars and provides free wifi and parking. Does this sound OK to you? Sentence17: That is all. Thanks for your help today. Sentence18: Yes please. Can you please book it for 8 people for 2 nights starting on Tuesday? Sentence19: Thank you so much. Sentence20: You're welcome. Is there anything else I can do for you today? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System