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: Sure I have two entertainment places the Cherry Hinton Hall and Grounds and the Funky Fun House. Do you have a preference? Sentence2: I now need a taxi Sentence3: The a and b guest house is moderately priced and in the east part of town. Would you like their phone number? Sentence4: Cherry hinton hall and grounds has the postcode cb18dw. Funky fun house's postcode is cb58hy. Do you need anything else? Sentence5: I have a Grey Audi scheduled to pick you up from funky fun house at 9:45 and take you back to the hotel. your confirmation # is 07146100465. Anything else? Sentence6: Their number is 01223315702, can I assist with anything else? Sentence7: Yes, I am also looking for information on any places of entertainment in town. Sentence8: Is it moderately priced? Also, I think I need it in the east part of town. Sentence9: No, I just need the postcode Sentence10: back to the hotel Sentence11: I would love to help where are going to? Sentence12: I have 5 different entertainment attractions in town. I have 2 in the east, 2 in the south and 1 in the west. Did you have a preference? Sentence13: same part of town as the hotel. Sentence14: Ok, can you confirm where you want to be picked up and when? Sentence15: Glad I could help. Have a great day! Sentence16: 09:45 at Funky fun house's. Please give the car type and contact number? Sentence17: Please, thank you. Sentence18: Can you help me find a hotel to stay in that includes free wifi and has a 4 star rating? Thanks! Sentence19: Acorn guest house is available would you like to stay there? Sentence20: Nope that'll be all thank you. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System