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. 
 agent: Hello. 
 customer: I'm Laura Phillips. 
 agent: How can I help you today? 
 customer: I need to attend a wedding in Washington.Can you book a ticket from NY - JFK to DC - DCA? 
 agent: Sure, let me know your travel dates. 
 customer: I need to depart on 09/06 and return on 09/08. The connection limit is 1. 
 agent: Sure, let me check for the availability. 
 customer: Ok. 
 agent: Flight number 1010 of Hawaiian airline is available for you, can I proceed with the booking? 
 customer: Can I know the price? 
 agent: The price is 100. 
 customer: You can proceed with booking. 
 agent: Your ticket is confirmed. 
 customer: Thank you for your help. 
 agent: Thank you for choosing us. Have a safe journey.
A:
book