Detailed Instructions: 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: Hello, I am Robert Rodriguez. 
 agent: Hello, how can I assist you today? 
 customer: I would have loved to go camping in Angel Island with my friends. Can you please help me to book a ticket? 
 agent: Sure, can you provide me your journey dates please? 
 customer: My travelling dates will be on 06/20 to 06/22. 
 agent: May I know your travelling codes please? 
 customer: From LGA to OAk. 
 agent: Let me know your connection limit and price limit please? 
 customer: Fare is 1000 with single connection. 
 agent: Ok, wait for  while. 
 customer: Ok. 
 agent: Thanks for waiting there is a flight.Airline name is Spirit with number is 1008. Shall I proceed for booking? 
 customer: You can proceed with the booking. 
 agent: Your ticket has been booked. 
 customer: Thank you. 
 agent: Thanks for choosing us, have a safe journey.
A:
book