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: Have a great day! Sentence2: Let's go with City Centre North B and B. I need to book for 6 people, 2 nights, and starting on Saturday, please. Sentence3: I have listings for two,city centre north b and b and worth house. Sentence4: That sounds great. Can you book that for 6 people for me? Sentence5: TR3602 departs at 15:59 Monday and arrives at London Liverpool street by 17:27. Does this suit your needs? Sentence6: thank you that will be all Sentence7: I'm looking for a train leaving after 15:30 from cambridge. Sentence8: I'm also looking for a recommendation on a hotel with free parking in the north. Sentence9: Sure! I have 6 people booked for monday with reference number 3EBQSQSC and a total of 99.6 GBP. Can I help you with anything else? Sentence10: Do you have a price range? Sentence11: Yes. Your reservation was successful. The booking number is 4H91C8I3 . Sentence12: london liverpool street and should leave on monday Sentence13: Yes, I'd like to keep it cheap, please. I do need free wifi, though. Sentence14: There are over 623 trains leaving then. Where will you be going to? Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User