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: Is Finches located in the west and if so, can I please get the postcode? Sentence2: I need to leave after 15:00. Sentence3: Finches Bed and Breakfast is listed as cheap, and it has 4 stars. Hobson's House is moderately priced, with 3 stars. Sentence4: You are welcome and I am glad we could be of help. Sentence5: In the west, we have four fine lodging establishments. Do you prefer a guesthouse or a hotel? Sentence6: There are many trains that leave from Cambridge, where are you going and what day would you like to leave? Sentence7: Thank you. That is everything I needed today. Sentence8: Ok, there are 9 different trains, did you have an arrival time you needed? Sentence9: Yes please. I also need a place to stay, preferably in the west part of town. Sentence10: I am looking for a train that departs from Cambridge. It needs to leave after 15:00. Sentence11: Yes it is, the post code is cb30nd. Sentence12: I need to go to stansted airport and I want to leave on Monday Sentence13: A guesthouse please that is not too expensive. Sentence14: Sure. TR7095 is leaving at 15:40. The price is 10.10 pounds and duration 28 minutes. It'll arive at 16:08. Should we book? Question: Who has spoken the sentence 11? (A) User (B) System
Output: 


Answer: (B) System