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: Jinling Noodle Bar and phone is 01223566188 Sentence2: Yes, please. Just go ahead and make a booking with your recommendation. I'll need a table on Sunday at 11:45. It will be 8 people. Sentence3: I would like to eat Chinese food, please. Sentence4: We have 21. What sort of cuisine would you like? Sentence5: I am also looking for some where fun to go in the Centre of town as well. Sentence6: Is there anything else I can assist you with? Sentence7: Can you find a moderate price restaurant in the centre? Sentence8: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 9VDXYHIH . Sentence9: No that would be fine. Thank you. Sentence10: Thee are 5 places in the centre that people visit for their architecture - would that be fun for you? For example, you could go to see holy trinity church for free. Sentence11: No thank you. You have been a great help. Sentence12: There are three moderately priced Chinese restaurants in the Centre. Would you like me to recommend one? Sentence13: That sounds great. Could I get the phone number and post code please? Sentence14: OK, could you maybe tell me which restaurant the reservation is at? Sentence15: Thank you for using our services. Sentence16: Yes, holy trinity church can be reached at 01223355397 and the postcode is cb23nz Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System