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: That sounds great, thanks for all of your help. I won't be needing anything else. Bye. Sentence2: Can I get the phone number and the entrance fee then? Sentence3: You're welcome, have a great day. Sentence4: The phone number for La Margherita is 01223315232 and they're located at 15 Magdalene Street City Center. Would you like me to make a reservation for you? Sentence5: Hi I am looking for a cheap place to dine serving Italian food Sentence6: Yes can I have the phone number? Sentence7: Absolutely! Would you like me to search for one in the same area? Sentence8: The area doesn't matter to me. Sentence9: Can you book it for me and get a reference number ? Sentence10: You have a few options for italian dining. What area of town would you prefer? Sentence11: I am sorry but you cannot book a museum but I can provide you with information about it. Sentence12: La Margherita serves Italian food in your price range. It's located in the west. Would you like additional information on this restaurant? Sentence13: how about byard art? it's phone number is 01223464646 and the entrance fee is free. Sentence14: Not at the moment. However, I am also looking for a museum. Can you assist me with that? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User