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: It was my pleasure to assist you! Til next time! Sentence2: That sounds good. Sentence3: Can you give me the number of people, the time, and the day you would like to go, please? Sentence4: I would like to book for Saturday at 12:15 for 3 people. Sentence5: There is one place called Wagamama. Great food. Can I book a table for you? Sentence6: There are three hotels that meet that criteria. Do you prefer a certain price range or part of town? Sentence7: Thank you so much. Can you help me find a 2 star hotel with free parking? Sentence8: Thanks, you've been helpful! That's it for me. Bye! Sentence9: The Ashley hotel has free parking and internet. It is rated 2 stars. Their postal code is cb41er. May I help with something more? Sentence10: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 75RU4Q1L . Sentence11: No, I just need to know if they have internet and I need their postcode. Sentence12: Give me an expensive japanese place to eat in the centre of the town please. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System