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 want some italian food. Sentence2: What kind of food? Sentence3: I am looking for a hotel named,"the lensfield hotel". Sentence4: Great! Thank you! I think that is all that I need today. Sentence5: Your reservation was successful. It will be available for 15 minutes. Your reference number is LOSDRFUO . Sentence6: The Lensfield is an expensively-priced 3 star hotel on the south side of town. They provide free Internet and parking, and they're located at 53-57 Lensfield Road, postcode cb21en. Sentence7: Thank, I also want to dine at a restaurant in the same area with an expensive price range. Sentence8: You're very welcome! Have a great day! Sentence9: There are tables available for 8 on Monday night. What time would you like the reservation? Sentence10: Yes, please. I need a table for 8 people on Monday night. Are there any available? Sentence11: I would like the reservation at 17:30. Sentence12: Frankie and Bennys has some really yummy food. Would you like me to make a reservation for you there? Sentence13: can I check availability for you? Sentence14: Yes and I will need to know their postcode, if they have internet, and what type of hotel they are. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System