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: looking for lensfield hotel, kindly find out whether it has internet and the area Sentence2: I also need a taxi to get to the college. I want to leave my hotel at 04:45. Sentence3: The college can be reached at 01223332400. Please let me know if you need anything else. Sentence4: Hello, I am planning a trip and need some information on a particular hotel. Sentence5: no but am also looking for places to go in town. The attraction should be in the type of college and should be in the centre Sentence6: the lensfield hotel is in the south part of town and has internet. Would you like their phone number. Sentence7: Yes I would like the phone number. Sentence8: Please give me the name of the location. Sentence9: i recommend gonville and caius college located intrinity street,cb21ta. do you need the phone number? Sentence10: You're welcome. Have a great day! Sentence11: A black honda will pick you up at that time, if you have any other questions you can contact them at 07444688519. Sentence12: Great! Thank you so much for your help. That's all I will be needing for today. Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User