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: I would like to arrive by 15:45. Sentence2: Can you help me find an expensive restaurant in the west? Sentence3: Can I get a taxi that would take me from Hobson's House to the restaurant? Sentence4: I'd love to help. When would you like to arrive by? Sentence5: Confirmed table for 1 for 15 minutes on the said date. Do you need me to keep the reservation and is there any other thing i can do for you? Sentence6: Great! Thank you for your help. Sentence7: I was able to book a black bmw phone number is 07591473862 Sentence8: It's in the moderate price range. Sentence9: Yes I am seeking information on a particular hotel, Hobson's House. Sentence10: I was hoping for Indian food. Sentence11: You're welcome, have a great day! Sentence12: I'm not sure. What is the price range? Sentence13: We have nine of them that fall in the price range, do you have any more specific preferences? Sentence14: Sure. Do they have table for 1 on Sunday at 15:45? Sentence15: Yes of course. It is CHBHZPDM . Sentence16: its a guesthouse located in the west and has free internet and parking, would you like a room? Sentence17: No thank you. That's all that I needed. Sentence18: I have 5 places that match your wants. Would you like to try the india house? Sentence19: I'd like to have the reference number please Sentence20: You're welcome! Can I help you with anything else? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User