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 will need to know where you are leaving from and going to and what time you wish to arrive or leave. Sentence2: I will be commuting between the hotel and restaurant. Sentence3: That will be okay, can we book that. Sentence4: Sorry, I have no results for that query. Would you like to try a different area of town? Sentence5: Which one would you recommend? Sentence6: Yes I have two. Would you like me to book one? Sentence7: I'd like a taxi to travel from the restaurant to the hotel. Sentence8: Please tell me how many people will be staying, starting on what day and for how many nights? Sentence9: Yes, need a chinese food restaurant in the same area and price range as the hotel. Sentence10: Booking completed! Booked car type yellow honda Contact number 07378282192 Sentence11: Yes both of them have free parking. Sentence12: It will be just me today, thanks. Sentence13: I'm looking to stay at a 3 star hotel in the north. Sentence14: I hope you have a pleasant stay! Sentence15: Thank you for your help. That is all I need today. Goodbye Sentence16: Thanks. Sorry about that. I'd still like to request a taxi between the two. Sentence17: Okay. The postcode for the Ashley Hotel is cb41er. The address is 74 Chesterton Road. Can I help with anything else today? Sentence18: the ashley is actually a 2 star hotel. Sentence19: I need to leave the restaurant by 3:30, and I'll be going to the hotel. Sentence20: It is cb43hl 191 Histon Road Chesterton Sentence21: Is the Ashley hotel a 3 star hotel? Sentence22: You never actually mentioned a restaurant. Are you needing help finding one? Sentence23: Are there any moderate priced hotels in the North? Sentence24: How about the Ashley hotel? Sentence25: no. i just need the postcode and address Sentence26: I need a hotel to include free parking; does either have that? Sentence27: I do not want to book it. I need the postcode and address only. Sentence28: Golden Wok sounds suitable for you. Do you want a reservation? Sentence29: How many people? Sentence30: Okay, let me work on booking that for you. Question: Who has spoken the sentence 29? (A) User (B) System
Output: 


Answer: (B) System