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: Yes, I'm also interested in finding some kind a multiple sports place to go while I'm in town. Is there anything like that? Sentence2: It is located at 144 thornton road postcode cb30nd and the phone number is 01223276653. Sentence3: Thank you, that is all I need today. Sentence4: How can I book a room? Sentence5: Where is Finches Bed and Breakfast located? Sentence6: Their phone number is 01223576412 and they're located in the east. Sentence7: Your booking was successful. Your reference number is 1KB3H7VC . May I help you with anything else? Sentence8: You are most welcome, have a wonderful day! Sentence9: I need to book it for 3 days starting on Wednesday. There are 6 people in my party. Sentence10: Please, what's their phone number and what area are they in? Sentence11: I'd be happy to do that for you, if you want to give me your details. Sentence12: There is the Cherry Hinton Village Center in the east. Would you like more information? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System