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: i need to know how how much the entrance fee is and the postcode if you may please? Sentence2: Is there anything else I can help you with? Sentence3: It is 8.08 pounds Sentence4: I will be traveling on Saturday and would like to arrive by 17:45. Sentence5: Thank you and goodbye Sentence6: Thank you! Can you also look up Cherry Hinton Hall and Grounds for me? Sentence7: What day and time time will you be travelling? Sentence8: Ok, thank you. Sentence9: Hi, I'll be visiting Cambridge soon, and I need a train from Stansted airport. It should arrive by 17:45. Can you help? Sentence10: No, thank you, that will be all. Sentence11: Yes, that would be perfect! What's the price of one ticket? Sentence12: Sure thing it is in the east of town, what information would you like to know about it? Sentence13: The post code is cb18dw but I do not have the information on the entrance fee. Sentence14: Great, there's a train departing at 16:24 and arriving at 16:52. Will this work? Question: Who has spoken the sentence 6? (A) User (B) System
Output: 


Answer: (A) User