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: their phone number is 01223357708. can i help with something else? Sentence2: Thanks. I am also looking for the Primavera. It is an attraction. Sentence3: I'd like to leave on wednesday and should arrive by 13:00 Sentence4: yes. also findme primavera's phone number Sentence5: Just to clarify, am I booking just one ticket or more? Sentence6: No. That will be all. Thank you. Sentence7: There are several what day and time do you want to leave or arrive? Sentence8: yes its a very nice attraction. Sentence9: Can I get their phone number please? Sentence10: What is the price of that train? Sentence11: Booking was successful, the total fee is 37.79 GBP payable at the station . Reference number is : 2Z3LQ075 . What else did you need? Sentence12: The price is 37.80 pounds. Would you like to go ahead a book a seat? Sentence13: Can you find me a train from Cambridge to Leicester? Sentence14: The TR2176 leaves Cambridge at 09:21 and gets into Leicester at 11:06. Will that work for you? Sentence15: Yes, I would like to book a seat on that train. Thank you. Sentence16: Thank you for contacting the Cambridge TownInfo centre. Goodbye Question: Who has spoken the sentence 2? (A) User (B) System
Output: 


Answer: (A) User