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: It is a museum. Sentence2: Great, thanks. You answered all my questions and were very helpful. Have a good day. Bye. Sentence3: Where will you be coming from? Sentence4: What is the postcode? Sentence5: The postcode is cb30aq. Can I help you with anything else today? Sentence6: Sure what type of attraction were you looking for? Sentence7: I need a train that goes to Norwich. Sentence8: I don't have a preference. You pick. Sentence9: That will work, can you book me seats for 7 and let me know the reference number? Sentence10: I will be leaving on Sunday Sentence11: the lynne strover gallery is located at 23 high street, fen ditton. their phone number is 01223295264. the admission is free. would you like help with something else? Sentence12: What type of attraction this? Sentence13: Great. On which day will you be traveling? Sentence14: Yes, there is one that departs at 5:36 and arrives at 6:55 will that work? Sentence15: Happy to be of help. Goodbye. Sentence16: I'm also looking for something to help kill some time on the west side of town. Do you have any recommendations? Sentence17: Booking was successful, the total fee is 98.56 GBP payable at the station . Reference number is : YGMYZLL2 . anything else i can help you with? Sentence18: I'll be leaving from cambridge. Is there a train that can get there before 17:15? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System