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. 
 customer: I am Carolyn Martinez. 
 agent: Carolyn, how may I aid you? 
 customer: Can you please help me in booking my flight ticket from 08/19 and 08/21. 
 agent: Please provide your airport codes. 
 customer: My travelling airport codes are LGA to PHX. 
 agent: Please hold on for a moment. 
 customer: Ok. 
 agent: We found a flight with 1 connection from Delta airlines and ticket costs you 200. 
 customer: Ok, please proceed. 
 agent: Your ticket is reserved in flight 1009. 
 customer: Thank you . 
 agent: Thank you for approaching us.
A:
book