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 a 9:17 train that will get you into Cambridge by 10:08. Sentence2: I need a good place to eat dinner. I Like Italian, what do you suggest? Sentence3: Great. I will be leaving London Kings Cross and want to get to Cambridge by 11:45 the day I eat at the restaurant. Sentence4: The travel time is 51 minutes and the per ticket price is 23.60GBP. Sentence5: feel free to contact us again should you need more assistance. goodbye. Sentence6: I can suggest the pizza express in the centre. Would you like more information on that? Sentence7: Please make a booking for a table of 2 at 16:15 on Thursday and provide the reference number. I also need to look for a train. Sentence8: I do not have a preference in price. Sentence9: Sure! There are plenty of options. Do you prefer a certain area or price range? Sentence10: Okay, may I please have the travel time and price? Sentence11: Thank you so much, I will book later. Have a great day, you have been helpful. Sentence12: I booked you a table for 2 for Thursday at 16:15 at the Pizza Express. Your reference number is 6PXRDIHG . Now let me help you with the train Question: Who has spoken the sentence 1? (A) User (B) System
Output: 


Answer: (B) System