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
Input: customer: Hello, I am Pamela Rodriguez. 
 agent: Hello, what can I do for you today? 
 customer: I want to reach Detroit, MI-DTW to meet my old friend to start a new business, can you help me to book a flight ticket from Dallas, TX-DFW? 
 agent: Sure, do you need a connection in between your journey? 
 customer: 02/04 and 02/04 are my planned travelling dates. I prefer one connection. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: We found a AA airline with flight number 1003 and price is 100 available according to your requirements. 
 customer: That's good you can book the ticket. 
 agent: Your reservation is done. 
 customer: Thanks for your assistance. 
 agent: Thank you for picking us.
Output:
book