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: Have a good trip! Sentence2: There are 4 hotels in the west area. Could you tell me what price range? Sentence3: Finches Bed and Breakfast was booked reference number QW2D4CNL Sentence4: Is there a cinema in the West area? Sentence5: I'm sorry but none of the hotel are available. Would you like to book another day or shorter stay? Sentence6: Yes I would. Can you give me the address, post code, and phone number for that museum? Sentence7: There are 7 museums in the area, would you be interested in the Lynne Strover Gallery? Sentence8: There are no cinemas in the west part of town in my system. Sentence9: Thank you for your help. Good bye. Sentence10: Will a two night stay work? If that works go then ahead and give me the reference number. Sentence11: Thanks for using our service. Have a great day. Sentence12: Oh, any of them will do. Let's book it for 3 people for 5 nights starting Wednesday. Sentence13: I have 29 results that match your request. To narrow it down, what area are you looking to stay in, and what price range? Sentence14: I would like to stay in the West as well. Sentence15: Too bad. How about museums? Can you recommend one for me? Sentence16: I think that's it! Have a nice day! Sentence17: Thanks. i also am looking for a place to stay with free wifi and free parking. Sentence18: Lynne strover gallery is located in the west at 23 high street, fen ditton postcode cb30aq, phone 01223295264. Can I help with anything else? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System