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: can i get the phone number for wandlebury country park? Sentence2: I have booked Warkworth House starting Monday for 5 days for 2 people. Reference #XLIO11MV . Sentence3: You're in luck; there are two beautiful parks in the south and both have free admission. Sheep's green and lammas land park fen causeway or wandlebury country park. Sentence4: Great, thanks. Can you also recommend something fun to do in the south part of town? Sentence5: Also what car type is it? Sentence6: Sure, the phone number is 01223243830. Sentence7: i want to book the hotel for two people and five nights starting from monday Sentence8: I'm sorry, I don't understand your question. Do you need to book a taxi? Sentence9: No thank you have a nice day. Sentence10: I'd like to take a stroll at a park. Sentence11: That is a nice guesthouse located on Warkworth Terrace on the East side of town. Can I tell you something in particular? Sentence12: Can you give me some information on the Worth House? Sentence13: Thanks so much for the help. Sentence14: Sorry to confuse. Yes, can I book a taxi from Wandlebury Country Park to Warkworth House. I want to leave by 11:30. Sentence15: You are welcome, have a good trip. Sentence16: Your taxi is booked, a grey tesla. Your contact number is 07097592462. May I help with something else? Sentence17: Thank you for contacting us have a nice day. Sentence18: Sure, is there a particular type of activity you are interested in. A museum or nightclub perhaps? Question: Who has spoken the sentence 8? (A) User (B) System
Output: 


Answer: (A) User