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: There are quite a few trains all week that could fit your needs. Which specific day are needing so we can narrow these down a bit. Sentence2: Perfect. I also need a train that goes to cambridge and arrives by 20:15. Sentence3: I'll be travelling on Wednesday Sentence4: Did you want reservations? Sentence5: What kind of museums are offered in that area? Sentence6: Can I ask where you're departing from and what day? Sentence7: How long is the train ride from Peterborough to Cambridge, please? Sentence8: Thanks, that's it for today. Goodbye! Sentence9: there are lots of museums, colleges, and churches to visit Sentence10: May I have the price ? Sentence11: There are 11 museums in the centre of town. They are all free to enter. Sentence12: The trip will last 50 minutes Sentence13: Tra TR0922 leaves at 13:17 and you will arrive by 14:L08 that is the latest one,can I book it for you ? Sentence14: I'm bored and need to venture out into the centre. What should I absolutely go see? Sentence15: The fare is 23.60 pounds Sentence16: departing from peterborough and going to cambridge. Question: Who has spoken the sentence 5? (A) User (B) System
Output: 


Answer: (B) System