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 want to go to a mutliple sports attraction. Sentence2: Do you like boats? There is the cambridge punter on 251a chesterton road. Sentence3: Sounds good to me! Can you give me their phone and address? Oh, and how much does it cost to get in? Sentence4: byard art would be nice Sentence5: The TR0798 leaves at 9:29 and gets you to Cambridge by 10:07. Would you like me to book you a ticket on it? Sentence6: You are booked on Thursday on TR0798, reference number is 06UZDAZR and the total cost is 80.8 GBP payable at the station. Sentence7: Thank you so much for your help, that's all I will need today! Sentence8: That would work. I need 8 tickets for that train please. Sentence9: Unfortunately, I don't have a multiple sport attraction in the centre. Can I try a different area or type of attraction for you? Sentence10: I am looking for a place to go in the Centre. Sentence11: How about a museum instead? Sentence12: Thank you for contacting Cambridge TownInfo centre! Have a pleasant trip! Goodbye! Sentence13: I am also looking for a train that arrives by 11:45 on Thursday from Bishops Stortford to Cambridge. Sentence14: Sure, the address is 14 King's Parade and their phone is 01223464646. Admittance is free. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System