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: Yes, Clare Hall's address is herschel road and it's phone number is 01223332360. Sentence2: I want to go to Ely. I need to arrive by 15:45. Sentence3: Where would you like to travel to? Sentence4: Yes, that would work. Could I get the full address and phone details for Clare Hall please? Sentence5: Yes, I made a reservation for 2 people. The reference number is K9R2W1I6 and the total fee is 8.8 GBP payable at the station. Sentence6: Clare Hall is a college in the West with no entrance fee. Will that do? Sentence7: No, there are no concert hall on the west-side. Sentence8: Yes. That's perfect. Can you book for 2 people? Sentence9: Is there one that is in the type of college? Sentence10: I can get you tickets for an arrival time at 14:07,that is the soonest, is that okay? Sentence11: Great. Can you recommend a Concerthall to go to? Sentence12: Do you have any concert halls located in the west? Sentence13: That's all I need. Thank you. Sentence14: the man on the moon is a concert hall located in the centre part of town. would you like their address and their phone number? Sentence15: Thank you for using Cambridge TownInfo centre. Please remember us for all of your future travel needs. Sentence16: I am looking for a train from Cambridge leaving Monday. Question: Who has spoken the sentence 13? (A) User (B) System
Output: 


Answer: (B) System