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: Home From Home is a 4 star guesthouse in the north. It has free wifi and free parking. Would you like more information? Sentence2: Definitely! Are you more interested in a pool or a boat? Sentence3: How many nights will you be staying? Sentence4: Yes, I'd like to book a room for 7 on sunday, please. Sentence5: No you have taken care of all my needs thank you so much and have a good day. Sentence6: I need a taxi between the two places. Sentence7: We're looking for some places to go in town. We'd like some information on pools and boating in the centre. Can you help with that? Sentence8: Yes, I keep hearing about this hotel called Home From Home. Can you tell me anything about it? Sentence9: Okay. May I have their telephone number, entrance fee and postcode? Sentence10: You're welcome! Is there anything else I can do to help you? Sentence11: Their phone number is 01223446100, postcode is cb11ly, and there is no entrance fee listed. Can I help with anything else? Sentence12: I booked the taxi. It will be a red ford and their phone number is 07801759620. Sentence13: Thanks. You've been a great help today. Sentence14: It will be for 2 nights. Sentence15: Here is an option in that part of town parkside pools. Sentence16: You're very welcome. It was a pleasure to help you. Good-bye. Sentence17: My kids are wanting to swim. What are the options in that area of town? Sentence18: I have booked the hotel for Sunday for 7 people for 2 nights. Your reference number is SRSOTYZ4 . Is there anything else I can help with? Sentence19: Before I can book you a taxi, what time are you planning on leaving parkside pools to go to home from home? Sentence20: I want to leave by 14:15. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User