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, I am a looking for a train that departs from peterborough and goes to cambridge. Sentence2: The Cherry Hinton Village Centre is a multiple sports facility in the east. Would you like their phone number? Sentence3: I'm looking for attractions in Cambridge regarding sports. Sentence4: Thank you have a wonderful day. Sentence5: I'll take one with an entrance fee, and I'll need the postcode, and phone number please. Sentence6: The train should leave on friday and should leave after 18:45. Sentence7: Alright, you have quite a few options. What day are you planning to travel? Sentence8: No thank you. I don't think I want to book the train at this time. Sentence9: You're very welcome, but before you go, would you like me to book the train for you? Sentence10: No, it needs be in the west. Any other museum's are located in the west please? Sentence11: There is one leaving at 18:48 TR1477 Sentence12: There are 7 museums in the west, would you prefer one that is free or one with an entrance fee? Sentence13: There is only one museum with an entrance fee is the west, it is the Cambridge and Country Folk Museum, postcode cb30aq, number is 01223355159. Anything else today? Sentence14: Okay! Let us know if we can be of any further assistance. Have a nice day. Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System