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: Could you give me the postcode, address please? Too bad it doesn't mention the entrance fee, but I will call them. Sentence2: Thank you for using our service today! Sentence3: That will work. Can you book me 2 seats, please? Sentence4: I can help you find a train but need more information. What day do you need the train and where are you traveling to? Sentence5: It is at Gonville Place. I'm not sure how much it is to enter the pool. 01223446100 is the phone number that could give you further information. Sentence6: Sure thing, this is the pool in the centre parkside pools. Sentence7: Booking was successful, the total fee is 28.64 GBP payable at the station. Reference number is : 8RMLZ0N0 . Is there anything else I can help with? Sentence8: Ok that sounds like what we need Sentence9: I would like to leave on Saturday, leaving from cambridge, and I would like to arrive by 17:45. Sentence10: Can you help me find a train going to Broxbourne? Sentence11: Yes, could you recommend a swimming pool in the centre? Sentence12: The address is Gonville Place, postcode cb11ly. What else can I help you with today? Sentence13: That is all. Thank you so much! Sentence14: Okay the TR8252 arrives by 17:45. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System