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: Is there a certain price range? Sentence2: Thank you for choosing Cambridge TownInfo. I hope you have a great day. Sentence3: I'd recommend curry prince in the east. It's a moderately priced restaurant. Would you like a reservation? Sentence4: Yes, it is in the moderate price range. Would you like me to book it for you? Sentence5: thanks! i'm also looking for a hungarian restaurant. Sentence6: So, my group is going to need a table at 15:30 on the day we arrive at the hotel. Sentence7: I'm sorry, but I am not finding any Hungarian restaurants. Would you consider another type of cuisine? Sentence8: You can look for indian restaurants. Sentence9: Booking was successful. The table will be reserved for 15 minutes.Reference number is : G7Z1RQ47 . Sentence10: I have made the reservations and your reference number JQUU393D . Sentence11: Does acorn guest house on 154 chesterton road work for you? Should I book it? Sentence12: Thank you. That is all that I need. Sentence13: Is it in the moderate price range? Sentence14: Yes. Please book it for 7 people and for 5 nights starting this Thursday. Sentence15: No, any price range will work. Sentence16: I'm looking for a guesthouse with free parking, please. Question: Who has spoken the sentence 3? (A) User (B) System
Output: 


Answer: (B) System