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: Find me a modern european restaurant in the south. Sentence2: I would like to arrive at the restaurant in time for my booking. Sentence3: What is the post code, area of town, and type of attraction? Sentence4: do you know where castle galleries is Sentence5: The post code is cb23bj, it is in the centre of town, and it is a museum. Sentence6: Yes it is. Would you like me to book it for you? Sentence7: Yes, book for 7 people at 15:30 on friday please. Sentence8: I have booked a grey Volvo for you. The contact number is 07114144706. Is there anything else I can do for you? Sentence9: Is it in the moderate price range? Sentence10: I also need a taxi, to go between the two places. Sentence11: Yes, I was able to book your party at 14:30. Your reference number is 7H21OO6L . Please note the table will be held for 15 minutes. You need anything else? Sentence12: I found Restaurant alimentum that fits your needs. Would you like me to book that for you? Sentence13: Yes, the address is unit su43, grande arcade, saint andrews street. Sentence14: Glad to have been of help. Take care. Sentence15: Well how about 14:30 then? Sentence16: No thanks. I think that was all. Have a good day. Bye. Sentence17: Sure! When would you like to leave and arrive by? Sentence18: I'm sorry, that isn't available for that time slot. Can you change it perhaps? Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User