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 there a time you need to leave by? Sentence2: No, not really. But I will need the train ID and departure time. Sentence3: TR1062 arrives at 9:55. Their departure time is 8:36. There are trains before that one every hour until 5:35. Sentence4: The jesus green outdoor pool in north is really nice. Need a phone number? Sentence5: Can I help with anything else today? Sentence6: Sure their address is between victoria road and the river. Is there anything else I may help you with today? Sentence7: I am also in need of a train that arrives by 10:15 and goes to norwich. Can you please look that up for me. Sentence8: Have a good trip. Goodbye. Sentence9: Hello, could you tell me about the swimming attractions around Cambridge. Something pool based please. Sentence10: Thank you so much for your help. Sentence11: Sure are you departing from Cambridge? Sentence12: Yes and I will be travelling on Saturday Sentence13: Actually, I would like the address, please. Sentence14: no. that is all i needed. thanks. goodbye. Question: Who has spoken the sentence 10? (A) User (B) System
Output: 


Answer: (A) User