Q: 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
customer: Hi. 
 agent: Hello, how may I assist you? 
 customer: I want to book a ticket from EWR to EWR, can you help me? 
 agent: Sure, may I know your travel dates please? 
 customer: My travel dates are 01/10 and 01/12. 
 agent: Ok, hold on for a moment. Let me check the best flight for you. 
 customer: Ok. 
 agent: I found a flight for you with Hawaiian airline and it costs you 100. Shall I proceed? 
 customer: Yes, please. 
 agent: Your ticket has been booked with 1005 flight number. May I know your name please? 
 customer: Myself Robert Thompson. Thank you for booking. 
 agent: Robert, thank you for choosing us. Have a safe flight.
A:
book