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: Booking completed! Booked car type : white lexus Contact number : 07055220533 Sentence2: I think that is all I need. Have a nice day. Sentence3: I also need a taxi to get to the restaurant from the hotel. Sentence4: I want to book Worth House for 3 people for 4 nights starting on Wednesday. Sentence5: Booking was successful. Reference number is : UOVCEW8B . Sentence6: I'd recommend the Prezzo. It's an Italian restaurant. Would you like to book a table? Sentence7: What time do you need to be picked up and from where? Sentence8: I'd like it to go from the Worth House to the Prezzo. It can pick me up any time, as long as it arrives by the booked time. Sentence9: Thank you. You do the same! Sentence10: Can you tell me how many guests and what time you would like the reservation for? Sentence11: No, I do not have a preference. Sentence12: We have British, Indian or Italian to choose from in that category. Do you have a preference? Sentence13: Yes, we would like a reservation for Wednesday. Sentence14: I'm looking for information on worth house. Sentence15: Worth House is a cheap 4-star guesthouse on the north side of town. They're located at 152 Chesterton Road, cb41da. Sentence16: I've reserved a table for three at 11:30 on Wednesday. Your reference number is HJKOKG94 . Is there anything else I can help you find in the area? Sentence17: For 3 people, at 11:30 please. Sentence18: I need a find restaurant in the moderate price range in the west part of the town Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User