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: Nice! Okay, that should be all I need. Thanks for your help and goodbye! Sentence2: I'm sorry for the confusion, what attraction are you interested in the entrance fee for? Sentence3: Can I get the phone number, postcode, and address? Sentence4: I enjoy museums. We have old schools. Would you like more information on that one? Sentence5: Great! have a wonderful trip! Sentence6: Good news! It is Free. Sentence7: We have 11 different museums in the centre, if you're not looking for a particular one, might I recommend the Primavera? Sentence8: Yes, how much does it cost to get in? Sentence9: Hm. That isn't it. I think it is called city centre north. Can you search again please? Sentence10: 01223312843 is the phone number cb43ht is the postcode and 328a histon road is the address. Sentence11: I am looking for a specific hotel by the name of city centre north b and b. Could you provide me with some additional information about this place? Sentence12: Did you by chance mean the A and B guesthouse? Sentence13: I'm looking for a fine arts museum in the centre. Sentence14: Thanks I'm also looking for a fun attraction to go in the centre. Can you make a recommendation? Sentence15: I found it. It is a cheap guesthouse in the north. The phone number is 01223312843. Sentence16: Okay. Can you tell the entrance fee? Question: Who has spoken the sentence 12? (A) User (B) System
Output: 


Answer: (A) User