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: We would like to enjoy some entertainment. Can you suggest something of this type? Sentence2: Yes I will need it for 7 people. Sentence3: No that's actually everything I needed. Thank you, goodbye! Sentence4: You're all set! The fee is 56.56 GBP and you can pay at the station. Your reference number is VWI4PRFE . Do you need anything else? Sentence5: The first train out after 11:30 leaves at 12:24. It arrives in Cambridge at 12:52. Would you like a ticket? Sentence6: Sunday I can leave any time after 11:30. Sentence7: Sure, what date and time would you like to travel? Sentence8: I need a train leaving from stansted airport. Sentence9: Is there a park? Sentence10: You're very welcome. Thank you and have a lovely day. Sentence11: I have lots to do in the center like, colleges, theater, cinema and architecture. Any preferences? Sentence12: There are clubs,can you ive me a idea of what you like ? Sentence13: Yes I need a place to go in the centre of town. Sentence14: The Cambridge university botanic gardens are lovely this time of year. The gardens are located on Bateman street. Do you want more information? Question: Who has spoken the sentence 9? (A) User (B) System
Output: 


Answer: (B) System