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: Thanks. I will also need take a train from london kings cross station that same day. What time do they leave? Sentence2: Alright, you have been booked at the Michaelhouse Cafe for Monday, 16:15, party of 5. The table will be reserved for 15 minutes. Your reference number is 0W78O9VD . Sentence3: It does not. For European food in the same area and price range, how about the Michaelhouse Cafe? It is located at St. Michael's Church Trinity Street City Centre. Sentence4: Does this restaurant serve european food? Sentence5: I have them leaving from 5:17 in the morning for every two hours until 24:08 in the evening. The journey is approximately 51 minutes. Would you like me to book you on the 11:17 or 13:17? Sentence6: I found you a British restaurant called Midsummer House Restaurant that is located in midsummer common how does that sound? Sentence7: 5 people Sentence8: Yes I will get that taken care of for you. Anything else i can do for you today? Sentence9: I need the train ID, please. Sentence10: I need to arrive by 13:30, so let's book the 11:17, please. Sentence11: I'm looking for a pricy restaurant in the city centre Sentence12: No, I think that's all that I'm looking for, thank for the help! Sentence13: How many people would you like to book it for? Sentence14: Okay. Great. Can you book me a reservation there for 5 people at 16:15 for this Monday? Also I will need a reference number. Sentence15: You are most welcome! Sentence16: The train ID for the 11:17 on Monday to London Kings Cross is TR5720. Is there anything else that I can help you with today? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System