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: Yes, could I get the phone number for holy trinity church? Sentence2: I would recommend the holy trinity church, located in the centre of town on market street. Admission is free! Do you need anything else? Sentence3: I would love to see some of the beautiful architecture that Cambridge has to offer. Sentence4: I have train TR6585 leaving at 13:11 and arriving at 13:58. Sentence5: Where in town would you like to go? Sentence6: Do you have anything leaving closer to 12:30? If not, could I have the train ID of the TR6585 please? Sentence7: how much are the tickets and the travel time? Sentence8: I am also looking for a train that goes to kings lynn leaving after 12:30. I would prefer it to leave on Tuesday and depart from cambridge Sentence9: You, too. Thanks so much for calling. Have a great day! Goodbye. Sentence10: The train ID of TR6585........is TR6585. Do you need anything else? Sentence11: 47 minutes and 9.8 per ticket Sentence12: Here is the phone number you requested, 01223355397. Sentence13: Hi, can you help me with some information on places to go in town? Sentence14: Thank you so much for your help. Have a nice day! Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User