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. 
 agent: Hello. 
 customer: I am Edward Hill. 
 agent: How may I help you? Nice to meet you Edward. 
 customer: Help me in booking my flight ticket to New York LGA. 
 agent: Sure, tell me your travel dates please? 
 customer: My travelling dates will be 04 to 06 Jan. 
 agent: Now your source airport code please? 
 customer: My source code is OAK. 
 agent: Thanks for your patience. I have found Hawaiian airlines which flies with one connection. 
 customer: You can proceed. 
 agent: Sure, your flight ticket has been confirmed now. 
 customer: Thank you. 
 agent: Thank you.
A:
book