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: Hi, I am Ronald Thomas. 
 agent: Hello, how may I help you? 
 customer: Can you please help me with booking a flight ticket from MSP to IAD? 
 agent: Sure, can you share your travelling dates? 
 customer: Travelling dates are 09/03 and 09/05. 
 agent: Wait a minute. 
 customer: OK. 
 agent: We found a flight on Jetblue airline, flight number as 1017 with the fare of 100. Shall I proceed? 
 customer: You can proceed with booking. 
 agent: Your ticket has been booked. 
 customer: Thanks for the help. 
 agent: Thank you for reaching us.
A:
book