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: Their number is 01223748100 .They are located on Castle Street and their postcode is cb30aq Sentence2: What side of town would you like to be on? Sentence3: What is the entrance fee for Kettle's Yard? Sentence4: I also need a place to stay that is a hotel and includes free parking and has a rating of 2. Sentence5: it is located in castle street and got free entrance. can i give you the contacts? Sentence6: Okay thanks. That was all I needed to know for now. Sentence7: The area doesn't matter. What would you recommend? Sentence8: Can you give me the phone numbers for them? Sentence9: There is no entry fee. Sentence10: Okay, the number for Ashley Hotel is 01223350059. The number for Express by Holiday Inn Cambridge is 01223866800, and the number for Lovell Lodge is 01223425478. Sentence11: I want to find Kettle's Yard located in Cambridge. Sentence12: thank you and enjoy your stay! Sentence13: I have 3. The 2 in the north are moderate priced and the one in the east is expensive. Would you like me to book one for you? Sentence14: Yes I would like all the contact info please. Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System