In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
Q: customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: I want to book a connecting flight ticket to attend an event from NY. Can you help me? 
 agent: May I know you travelling airport codes? 
 customer: EWR and OAK are my airport codes. 
 agent: Can you please let me know your travelling dates? 
 customer: 12/28 and 12/30 are my travelling dates. 
 agent: May I know your  class preference? 
 customer: I need a business class. 
 agent: Please let me know your name? 
 customer: Myself Ronald Scott. 
 agent: Here is a connecting flight with fare 1000 and 1026 as flight number in United airline. Shall I proceed with booking? 
 customer: You can reserve it for me. 
 agent: Your ticket is confirmed in business class. 
 customer: Thank you for your help. 
 agent: Thank you for reaching us.
A:
book