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: I have 4 different ones. The best in that area is the Cambridge Artworks. It's located at 5 greens road. Their postcode is cb13ef. They offer free admission also. Sentence2: I need it to arrive by 12:15. I don't know how long the ride is? Sentence3: I will be leaving from cambridge. Sentence4: Booking was successful the total is 113.4GBP and can be paid at the station. Your reference number is EKI0YZF7 . Sentence5: That sounds great. Could you give me their phone number? Sentence6: What time would you like your train to depart? Sentence7: Can you also give me some information on museums in the east area? I need postcode and phone numbers. Sentence8: Great. Have a fantastic time! Thanks for using Cambridge TownInfo centre. Sentence9: Yes, for 3 people please. Sentence10: No thanks, that will be all. Sentence11: Where will you be departing from? Sentence12: Yes I am looking for a train that is leaving monday to leicester Sentence13: There is a train that leaves at 9:21 and will arrive by 11:06 would you like me to book it? Sentence14: Their phone number is 01223902168. Can I help you with anything else today? Question: Who has spoken the sentence 4? (A) User (B) System
Output: 


Answer: (A) User