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 are several. Would you like British, Chinese, Gastropub, or Indian cuisine? Sentence2: What time would you like to leave and arrive for your taxi? Sentence3: Thank you, I also need a place to stay with free parking and free wifi. Sentence4: Book me a table of five for Tuesday at 11:30 in one that serves British cuisine. Please get me the reference number as well. Sentence5: Thank you for using Cambridge TownInfo centre. Have a great trip! Sentence6: There are 29 different hotels that fit this request. Did you need it in a certain area or did you prefer a certain price range? Sentence7: Yes, I'd also like it to be expensive and on the east side. Sentence8: I want to find an expensive restaurant in the east side. Sentence9: I need it to pick me up in time to get me to the restaurant before 11:30. Can I get a contact number and car type please? Sentence10: Yes please. I'll also need information about a taxi service as I won't have transportation on this trip. Sentence11: The car is a black lexus and the contact number is 07421870215. Sentence12: It is a hotel-hotel. Its named holiday "inn" and I completely understand, it can be confusing. Would you like me to book you a room? Sentence13: It sounds like you're looking for Express by Holiday Inn Cambridge then! Sentence14: Great thanks! That's all I need. Sentence15: I was able to successfully book a table for 5 at the Grafton Hotel restaurant at 11:30 on Tuesday, your reference number is 701570FS . Sentence16: That would work well what type of hotel is it? Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System