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: There is the Vue Cinema on the grafton centre, east road. Sentence2: That's all I need! Sentence3: Great, thanks. Can you also help me find a train? Sentence4: Sure, TR8241 arrives at Kings Lynn by 13:58, with a short 47 minute commute. The cost for a ticket is 7.84 pounds. Is there anything else you need? Sentence5: There are many trains running, let's narrow down the search a little bit shall we? What time, day and where are you going may help Sentence6: I don't need to book, but can you tell me the train ID, arrival time, and total travel time? Sentence7: Can I have the postcode and phone number? Sentence8: Sure the phone is 08712240240 and post code cb11ps. Sentence9: The first train available is at 13:11, and there are others running every hour thereafter. Would you like me to book for you? Sentence10: I would like to leave on Sunday after 12:30, on the train departing from Cambridge and arrive in Kings Lynn. Sentence11: I am traveling to the centre area of cambridge and am looking for something to do. Can you recommend places to go. Sentence12: Alright, I'm glad I was helpful to you today. Have a great day. Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User