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 safe trip! Sentence2: I'm looking for information on Saint John's College. Sentence3: Bridge Guest House meets those criteria. It is located in the south. Would you like for me to book it for you? Sentence4: I'm not concerned about the area, but I'd like it to include free parking and wifi and have a 3 star rating please. Sentence5: The address is 151 Hills Road. Anything else I can do for you? Sentence6: I need the address and entrance fee as well. Also can you help me find a hotel with free parking in the moderate price range? Sentence7: Yes St John's college is located at saint john's street and their telephone number is 01223338600. It costs 2.50 pounds to enter. Anything else? Sentence8: The address for St.Johns is St.John's St.,postcode cb21tp. There is an entrance fee of 2.50P. You have 14 choices of hotels, is there a specific area you prefer? Sentence9: Can you tell me what area it is located in? Sentence10: I'd like to book a taxi between Saint John's College and the hotel, leaving the hotel at 4:15. Sentence11: Okay, I've booked a taxi for you at 4:15pm at the Bridge Guest House. It will be a black Volkswagen. The number is 07240037071. Anything else I can help with? Sentence12: Yes St John's is located in the city center. Sentence13: That's literally every thing I needed today. You've been amazing, thank you so much! Sentence14: That won't be necessary. I just need the address. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System