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: i am looking for a place to stay. The hotel should have a star of 0 and should be in the cheap price range. Sentence2: Thank you for your help. Sentence3: Ok. I want a taxi to pick me up from the attraction by 10:45 and take me to the hotel. Please give car type and contact info Sentence4: Maybe Old Schools, it is an architecture attraction. Sentence5: I have booked a taxi service for you. The car will be a yellow honda and the phone number to reach them is 07991691380 Sentence6: I would like to find something fun to do in the East. Sentence7: Just pick an attraction in the same area as my hotel that you personally recommend and tell me its type Sentence8: That would be the El Shaddai. They offer free parking and wifi. They are located at 41 Warkworth Street. Their postcode is cb11eg. You can reach them at 01223327978. Sentence9: The centre will be fine. Can I have the info on that one,please? Sentence10: Glad I could help. Have a great day. Sentence11: What kind of entertainment are you looking for? Sentence12: I actually need to stay in the east and it needs to have free wifi please. Sentence13: Unfortunately, I cant find a listing in the east part of town, the next listing available is in the centre and it does have free wifi. Sentence14: I have one in the north area would you like me to book it for you? Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System