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 sucks. How about museums in the west? Sentence2: I need to go out tonight - what's the hottest nightclub on the west side? Sentence3: I'd be happy to help, first I'll need more information. Please tell me the day, time and number in your party for your reservation. Sentence4: Yes, please. I would appreciate that. Sentence5: How many people? Sentence6: It will just be me Sentence7: Thanks, what is the postcode and entrance fee for kettles yard? Sentence8: What time did you want to make the reservation for? Sentence9: No that will be all. Thank you. Sentence10: We have 7 different museums in the west part of town. Do you want me to give you a recommendation? Sentence11: The postcode is cb30aq and it is free. Sentence12: Ok, booking was successful. Reference number is : SVJX0QE7 . Can I help with anything else? Sentence13: 18:45 on weds Sentence14: I would suggest kettles yard. Sentence15: There are no nightclubs on the west side of town. Sentence16: I also need to book a table at the royal spice restaurant. Sentence17: It will be for one, Wednesday. Sentence18: You are most welcome! Good bye. Question: Who has spoken the sentence 17? (A) User (B) System
Output: 


Answer: (B) System