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: Can you give me the address and postcode for Cambridge Artworks? Sentence2: Can you go ahead and book me a room for 4 nights starting Friday? There will be a total of 6 people. Sentence3: Thank you for all your help. Goodbye. Sentence4: I'm looking for somewhere to go in the east part of town. Can you help me? Sentence5: Hi, I'm looking for a place to stay in Cambridge. Can you help me? Sentence6: Yes, of course. What area will you be staying in? Sentence7: I actually want to stay in the East, with free parking. Sentence8: No problem. Do you have any preference? Sentence9: Great, have a good one! Sentence10: There are 4 places to stay in the south. Do you have any other specifications? Sentence11: The Lensfield fits all these criteria, would you like me to book it? Sentence12: I don't really have any preferences other than I want it to be in the same area as the hotel. Sentence13: I will be staying on the southend. Sentence14: I want it to be expensive and include free parking. Sentence15: I managed to book your reservation successfully, Reference number is : FK4WK9O1 . Thank you. Sentence16: The postcode is cb13ef and the address is 5 greens road. Sentence17: Okay, well I recommend Cambridge Artworks. It's a lovely museum. Sentence18: Sure, Express by Holiday Inn Cambridge is an expensive hotel in the east with free parking. Would you like more information? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System