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: Okay, do you need the taxi to go to the restaurant or the attraction? Sentence2: Okay, perhaps you can find a college that I can visit. Sentence3: Thank you so much. Sentence4: I have 8 results. What area would you like? Sentence5: I want to leave the attraction at 09:45 and head to the restaurant. Sentence6: it is on regent street Sentence7: I'm sorry there are no matches. Sentence8: It should be cheap and include free parking. Sentence9: i also want a taxi to commute between the two places Sentence10: There are 21 guesthouses offering free wifi. Do you have a price range? Sentence11: Sure, you will be expecting a black lexus , their contact number is 07988632177 Sentence12: I recommend finches bed and breakfast, that've got some good reviews. Sentence13: There are five colleges available in the centre area. How about Downing College? The entrance fee is free. Sentence14: Oh thats great. Please assist to book that for 5 nights starting from Saturday and if it fails then Tuesday. Please send me the reference number when you are done. Sentence15: Sounds great. What is the address? Sentence16: Yes, I'm looking for entertainment attractions located in the centre. Sentence17: No particular area. What do you recommend? Sentence18: you are welcome, enjoy yourself. Sentence19: Booking was successful for Saturday. Reference number is : 5LQHD9SU . Can I help with anything else? Sentence20: I'm planning a trip to Cambridge and need a 4 star place with wifi to stay. It doesn't matter if its a hotel or guesthouse, just 4 star please. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User