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: That sounds good. What is their phone number, address, and entrance fee? Sentence2: For the train, I am leaving Cambridge and going to Bishops Stortford. Sentence3: TR5928 leaves Cambridge at 19:29 and arrives by 20:07, making it a 38 minute trip. It costs 10.10 pounds. Do you need me to book some seats for you? Sentence4: Yes please. I would like one seat. Sentence5: Okay. I booked you one seat on TR5928. The reference number is D42F8OSX and it will cost 10.1 GBP. Sentence6: Okay, where are you headed and where are you departing from? Sentence7: Thanks for choosing to stay in our city, enjoy the trip! Sentence8: We have an entertainment venue called Whale of a Time in the west. Sentence9: Sure, the address is Unit 8, Viking Way, Bar Hill. Sentence10: Thank you for your help, that is all for now. Sentence11: looking for a train. The train should leave on tuesday and should leave after 19:00. Sentence12: First can I get the address for Whale of a Time? Sentence13: how much is admission? Sentence14: The phone number is 01954781018. Sentence15: The admission fee is not currently available, so you may want to call their box office. Sentence16: I'm looking for somewhere fun to go in the west part of town. Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User