Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: That will work, can you reserve 7 seats for us on that train please? Sentence2: I'm going to cambridge and I need a train that leaves on wednesday. Sentence3: Booking was successful. Reference number is : SY83O0SO . Sentence4: What kind of food would you like ? Sentence5: That is all I need, thank you! Sentence6: I would recommend Lovell Lodge on the north side. It is moderately priced and has internet and parking. Sentence7: Where will you be departing from and what time do you need to arrive in Cambridge? Sentence8: I'd like to leave from Standsted sometime after 15:30. Sentence9: I'm sorry I don't need a restaurant, I need to find a hotel that has 2 stars. Sentence10: I was able to book for you. The reference number is DSE7LBCU . Sentence11: Thank you can you help me find a place to eat as well? Sentence12: the TR1342 leaves at 16:24 Sentence13: Have a wonderful stay. Sentence14: That sounds great. Book it for me for 7 people for 4 nights starting from the same day. Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System