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: I'm looking for an entertainment place. Sentence2: The train ID is TR3055 and each ticket is 23.60 GBP. Can I help you with anything else today? Sentence3: Entertainment venues please. If they are not available then architecture venues. Sentence4: There are several architecture places to visit, Holy Trinity Church is located on Market Street and has free entrance. Would you like info on any others? Sentence5: Sure. What kind of place are you looking for? Sentence6: Where are you departing from and when? Sentence7: What side of town would you like to be on? Sentence8: centre and should be in the type of entertainment closeby as well Sentence9: I will need to take a train to london kings cross on friday. Sentence10: Can you please recommend one and provide me with their post code and phone number? Sentence11: I'm departing from Cambridge, preferably after 20:45 Sentence12: holy trinity church and the post code is cb23nz and the phone number is 01223355397. Sentence13: Thank you for all your help. You have answered all my questions today. Goodbye. Sentence14: There are two trains that fit your criteria. One leaves at 21:00 and the other at 23:00. Which of these would you like me to book for you? Sentence15: i'm also looking for a place in town in the centre. Sentence16: Good night, have a nice evening. Sentence17: Sure, there are plenty of options. Were you looking for a specific type of attraction? Sentence18: i prefer the 21:00 please help me get the train ID and price Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User