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: Great, please book a table for 7 people at 15:15 on Friday. Sentence2: Okay, I also need a train to get to norwich. Sentence3: I'm looking for a Japanese place in the centre of town. Sentence4: I can help you with that, do you have a certain place in mind today? Or would you like to search in a specific area? Sentence5: It doesn't matter when I arrive as long as I leave after 14:35 from cambridge on saturday. And I'll want to book the train for the same group of people. Sentence6: I'll pay at the station. Well that's it for me today. Thanks for all your help! G'bye :) Sentence7: What day will you travel? Sentence8: How expensive is it? Sentence9: It is expensive range in price. Sentence10: I have booked you a train leaving at 14:36. The cost is 112.64 GBP. Reference number MB0PZVMJ . How would you like to pay? Sentence11: I'll be leaving Cambridge on Saturday after 13:45. I''ll be heading to Norwich. Do you have anything for me? Sentence12: Hello, I'd like some information on a restaurant today. Sentence13: I was able to book your table for 7 for Friday at 15:15. The Reference number is : INI5O0N5 . Sentence14: Yes, there are 10 trains that would work. They run every hour starting at 14:36. When would you like to arrive in Norwich? Sentence15: I have one listing for wagamama, will that be okay today? Sentence16: Thank you for contacting us have a nice day. Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System