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: Not really but I would like to make a reservation for 7 people at 16:45 on a Friday. I will need the reference number as well. Sentence2: I also need to get a taxi to go from the hotel to the restaurant. I need it to arrive at 16:45. I'd like the contact number and the car type. Sentence3: The car type is a White Volkswagen and the contact info is 07869317817. They will pick you up in time to have you at the restaurant by 16:45. Sentence4: Hi! I'm planning my trip to Cambridge and I was wondering if you had information on any Mediterranean restaurants located in the centre of Cambridge? Sentence5: I was able to book the table for you the reference number is HH5J45Z5 . There are many guesthouses to chose from, what area do you want to stay in? Sentence6: Thre are 3 such places. Do you have a price range? Sentence7: Thank you so much, thats all I need Sentence8: I would like to recommend the gardenia is that okay to book? Sentence9: I don't seem to have a preference but I wiukd like a moderately priced place with free parking. Sentence10: Could I have the postcode and how many stars of the hotel? Sentence11: You're very welcome! Have a great stay! Bye! Sentence12: Can I reccommend acorn guest house in the north,it has free parking and moderately priced? Sentence13: Yes. That sounds good. Do you have any moderate priced guesthouses available? Sentence14: The postcode of Acorn Guest House is cb41da. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User