You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Ex Input:
Sentence1: Are there any that serve north american food? Sentence2: yes. please book for me a table for thee tommorow diner at 8 pm Sentence3: There phone number is 01223312598. Is there anything else I can assist you with? Sentence4: Yes, there is gourmet burger kitchen. It is an expensive restaurant. Would you like me to book it for you? Sentence5: Yes, the University Arms Hotel is located in the centre area and is on Regent Street. Would you like me to book a room for you? Sentence6: Okay can you also help me with a restaurant that serves Cantonese food in the city center? Sentence7: I just need their phone number. Sentence8: I need information on the university arms hotel. Sentence9: No I am good for now, thanks for all of your help. Sentence10: I need more info. Does the hotel have free parking and what is the price range? Sentence11: There aren't any restaurants in the city centre that serves Cantonese food. Would you like to try a different type of cuisine or try a different area? Sentence12: Thank you for contacting us and have a nice day. Sentence13: You asked about a hotel. Would you like to book a room or would you like me to help find a restaurant? Sentence14: It is in the expensive price range, but it does have free internet and free parking. Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I need help, i just been the victim of a robbery. Sentence2: You are most welcome! Sentence3: Sure, here it is: Parkside, Cambridge. Sentence4: I am not hurt but I need to get in touch with the police, can you send me the address? Sentence5: Are you hurt? Sentence6: Thank you for your help Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I'd like to commute between the two places. Sentence2: Fortunately, it is free entry. Is there anything else I can help you with? Sentence3: I'd like a room in the north please Sentence4: There are 13 different places to stay, do you have a preference on price or amenities? Sentence5: No. Is there availability for 1 night? Sentence6: The regency gallery address is 39 fitzroy street in the centre area. Sentence7: I'm happy to help. Where in the city would you like your hotel to be located? Sentence8: Great, thanks for using our service. have a great day. Sentence9: Maybe. Unless you can just tell me what the entrance fee is and then I won't need it? Sentence10: Where would you like to go? Sentence11: I would like a hotel that has open bookings for 6 people for 2 nights starting from Saturday. Sentence12: You're in luck. I've got a room available for saturday at the acorn guest house for 6 people. It's booked, your reference # is 3IX7EGRG . Sentence13: Yes, I'd like a place to stay, too, please. Sentence14: It is a museum. Would you like the phone number? Sentence15: Okay. Can you book me a taxi as well? I want to leave the hotel by 04:00. Sentence16: Ok I booked you a taxi to leave the acorn guest house at 4:00. The car will be a blue toyota and the contact number is 07424241550. Sentence17: Okay, what kind of place is it? Sentence18: Wonderful, you've been very helpful! That's all I need for today, thank you! Sentence19: I am looking for regency gallery. Can you tell me where it is located? Sentence20: Unfortunately, I can't find any openings for those nights in the north. Would you like to try a different part of town? Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:

Answer: (B) System