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

Ex Input:
Sentence1: Yes as long as its in the same area and price range. I need a reference number too then please Sentence2: I'm looking for a cheap restaurant in the west area. Sentence3: I was unable to book that, would you like me to try something else? Sentence4: Okay that is all I need for now. Sentence5: I was able to get you into Thanh Binh. Your reference number is CLIBOL1Q . Sentence6: Let's go with La Margherita. Could you book a table for 2 people at 13:30 on Saturday? Sentence7: Thank you and goodbye. Sentence8: You have your choice of La Margherita, which serves Italian food, or Thanh Binh, which offers vietnamese cuisine. Question: Who has spoken the sentence 7? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: Great. I booked six tickets on TR4095 departing at 11:35 and arriving in cambridge at 11:52. Your confirmation number is W6PWPYOP . Sentence2: I need to book a train for Monday from Ely to Cambridge to arrive by 14:00 for 6 people. Sentence3: What time would you like to leave by? Sentence4: That is all I needed, good day to you. Sentence5: Anytime as long as i arrive by 14:00. Can you provide me with a reference number after booking? Sentence6: Have a great day! Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: restaurant two two is in the north area and serving french food, can I help you with anything else? Sentence2: How about French type food? Sentence3: Yes. Can I get the name and phone number of one of those restaurants? Sentence4: Thank you. Goodbye. Sentence5: I need to find a restaurant in the north side of town Sentence6: OK. Did you have a certain price range of cuisine in mind? Sentence7: What is the area again sorry ? Sentence8: Yes, Restaurant Two Two can be reached at 01223 351880. Sentence9: Thank you for your help. Have a great evening. Sentence10: I'm sorry, there are no restaurants listed serving catalan food in the north part of town. Would you like to try something else? Sentence11: it is located in the north part of town Sentence12: I don't have a price range. I'm looking for a restaurant that serves catalan food. Question: Who has spoken the sentence 5? (A) User (B) System

Ex Output:

Answer: (B) System