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: Hello, I will be in Cambridge later on this week and I can't seem to find King's college. I am not sure how to find it, can you help? Sentence2: I've booked you on TR8185, for 7 people. It departs Cambridge at 13:36 and arrives in Norwich at 14:55. Sentence3: There is no entrance fee, Kings College is FREE! Sentence4: And what's the entrance fee? Sentence5: I have a train that departs from Cambridge at 13:38 and arrives in Norwich by 14:55. Would you like to place a booking? Sentence6: I would like to arrive by 15:15. Sentence7: No, that was all I needed today. Thank you for your help. Sentence8: Thank you for using our system! Sentence9: The booking reference number is 9SDIIVSB . Anything else I can help you with? Sentence10: Thank you. Can I have the reference number for that booking? Sentence11: I found 133 trains going to norwich, what date, time or station will you be leaving from? Sentence12: There are 19 that leave on Sunday from Cambridge. Do you want to depart or arrive by a certain time? Sentence13: Yes, Kings College is in the center of town and the address and postal code is King's Parade, cb21st respectively. Sentence14: I would like to make a booking for 7 people please. Sentence15: I would like to leave on Sunday and depart from cambridge. Sentence16: That's great! Can you also help me find a train going to norwich? Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System