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 would like to arrive by 18:15. Sentence2: The TR0277 will get you there by 18:07. I can book you 2 tickets on that if you would like? Sentence3: I need two tickets. Sentence4: i'd recommend the oak bistro. their phone number is 01223323361. their postcode is cb21eg. Sentence5: Awesome. We're here 24/7 if you need us again. Thank you for using the Cambridge TownInfo centre. Have a great day! Sentence6: Yes. Are you departing or arriving in bishops stortford? Sentence7: two tickets will be fine, please. Sentence8: There are 7 restaurants in the Centre that serve British food, is there a price range you would like to stay in? Sentence9: I have 10 trains going to Bishops Stortford from Cambridge on Thursday. What time do you need to arrive? Sentence10: A nice place to eat that serves Austrian food. In the centre of town if possible. Sentence11: great! thanks. thats all i need. goodbye. Sentence12: I am so sorry no Austrian restaurants in that area, another food type perhaps? Sentence13: Okay, do you have any good restaurants serving British food? Sentence14: Do you book trains for the bishops stortford? Sentence15: TR0277 two tickets. the total fee is 20.2 GBP payable at the station. Reference number is: 00QGJ7W5 . Will there be anything else I can help you with today? Sentence16: I am going there from Cambridge on Thursday. Sentence17: Any is fine, can I get the phone number and postcode of one you'd recommend? Sentence18: TR0141 will have you in Cambridge by 14:07. Question: Who has spoken the sentence 14? (A) User (B) System
Output: 


Answer: (A) User