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: Sure. We have the Ashley Hotel and the Lovell Lodge, both moderately priced. Sentence2: Wait, before you go, can you give me the phone number and address of the Ashley Hotel? And do they have internet there? Sentence3: Glad to be able to help. Don't hesitate to get in touch if you need anything else. Sentence4: I can certainly help you with that. Where are you departing from/going to and what times do you need to leave and arrive by Sentence5: I'm going from Cambridge to London Kings Cross on Monday. I'd like to be there by 18:30 if possible. Sentence6: I would also like to book a train please. Sentence7: Thank you for using Cambridge TownInfo centre. Please consider us for your future travel needs? Sentence8: I am coming to cambridge and need a hotel in the north area. Can you find me one? Sentence9: Thank you. That is all I needed. Goodbye. Sentence10: Okay, thank you for your help. Goodbye. Sentence11: The Ashley Hotel is located at 74 chesterton road with a postal code of cb41er and their phone number is 01223350059. Sentence12: None. Both parties hung up the phone. Sentence13: Sounds perfect. Can I get 5 tickets please? Sentence14: TR7786 will get you there at 17:51. Would you like me to book that for you? Sentence15: Have a great day. Goodbye. Sentence16: Definitely. Your are booked for 5 with a total of 118 GBP payable at the station. Reference number is VOU7M1EH . Question: Who has spoken the sentence 7? (A) User (B) System
Output: 


Answer: (B) System