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 4 guesthouses that meet your criteria. The Hobsons House is popular. Would you like to book it? Sentence2: Yes, I also need a taxi. Sentence3: Where would you like to travel and what time would you like to go? Sentence4: Yes - I'm looking for a 3-star place to stay. Something moderately priced. Sentence5: You are booked at the Hamilton Lodge for three days starting Monday, and your confirmation number is 1ROQGKD4 . Can I assist you with anything else? Sentence6: The folk museum sounds interesting. Can I get the address and entrance fee? Sentence7: I am not showing an architecture in the west. Would you be interested in a different type of attraction or a different area? Sentence8: In the North and Moderately priced we have hamilton lodge and alpha-milton guest house. Sentence9: Thank you for the info on the taxi and helping me find one have a great day! Sentence10: Hi, I want to find an architecture attraction in the west please. Sentence11: Are there any museums in the west? Sentence12: Yes. There are 7 museums in the west. I can recommend the cambridge country folk museum and kettle's yard. Would either of those interest you? Sentence13: I wish you a lovely day too. Sentence14: Their address is 2-3 castle street and the fee is 3.50 pounds. Is there anything else that I can help you with? Sentence15: As long as it is in the North, and meets that criteria, sure. Sentence16: Hamilton lodge and book for 2 people for 3 nights starting monday, please. Sentence17: The contact number is 07050010887 and it will be a white Ford. Sentence18: I want to leave the folk museum by 2:30 to go to the hotel. Can you get me the contact number and car type? Question: Who has spoken the sentence 15? (A) User (B) System
Output: 


Answer: (B) System