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, what can I do for you? 
 customer: Can you help me to book a flight ticket with the fare limit 1000 to attend my family meeting? 
 agent: Sure. May I know planned journey dates please? 
 customer: 11/15 and 11/17 are my travelling dates. 
 agent: Please mention your good name. 
 customer: I am Robert Walker. 
 agent: Could you please share your airport codes? 
 customer: My airport codes are from Boston, MA-BOS to Los Angeles, CA-LAX. 
 agent: Is there any connection limit you prefer? 
 customer: I need a halt. 
 agent: Ok, please wait a while. I will check and revert to you. 
 customer: Sure. 
 agent: Thank you for being wait. There is a airline available according to your request. 
 customer: May I know the flight details? 
 agent: Sure, Hawaiian airline flight number 1002 and price is 100. 
 customer: IOk, you can proceed with the booking. 
 agent: Your reservation has been processed. 
 customer: Thank you for your service. 
 agent: Thank you for picking us.
A:
book