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: Sheep's Green and Lammas Land Park Fen Causeway is located at Fen Causeway, Newnham road, postal code cb322ad. Sentence2: I'm happy I was able to help you today. Call the Cambridge TownInfo centre whenever you like! Sentence3: Alright. What type of places? Cambridge has a wide array of things to do and places to go such as, museum's, nightclubs, parks and restaurants. Sentence4: I would like to visit a park. Could you find one and give me the address and postcode? Sentence5: I have booked your train. The reference number is JI5O0VTT . The fee is 7.84 GBP payable at the station. Sentence6: Thanks! I'm also looking for a train from Cambridge to Kings Lynn. Sentence7: That's all I need. Thank your for your help. Sentence8: The earliest train is TR7604. It arrives at 19:58. Would you like me to book a ticket? Sentence9: I'll be sure to so that, bye. Sentence10: Yes, please book 1 ticket. May I have the reference number? Sentence11: I would like to leave on Saturday after 18:45. Sentence12: Do you have a day you would like to travel? Sentence13: Thank you for using our system. Sentence14: I am looking for places to on the south side of town. Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User