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: The address to riverboat georgina is cambridge passenger cruisers, jubilee house and the postcode is cb43ax. Can I help with anything else? Sentence2: I am looking for places to go in the north area. Sentence3: I have a boat, park or 2 swimming pools in that area. Is there one you would like to try? Sentence4: For how many do you need this reservation? Sentence5: I'm looking for a place to eat that is in the same area. I want it to be cheap. Sentence6: You're welcome. Enjoy the rest of your day! Goodbye. Sentence7: Your table is reserved at DaVinci, ref# 6U1JO0B2 . Is there anything else I can do for you today? Sentence8: Da Vinci Pizzeria sounds good. Thanks. Sentence9: You've got 2 choices in the north for cheap places to eat: Royal Spice serves Indian food, and Da Vinci Pizzeria serves Italian food. Which would you prefer? Sentence10: I also need a taxi that will get me to the restaurant in time for the booking you just made. Sentence11: Excellent, I have booked you a taxi, a yellow skoda, and the contact number is 07262084765. Is there anything else I can help with? Sentence12: I need to book a table for 8 at 18:30 on Monday, please. Sentence13: No, I think this is all I need for today. Thank you for your help today. Sentence14: Give me more information about the boat please. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System