You will be given a definition of a task first, then some input of the task.
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: Hello, Donna Rodriguez here. 
 agent: Hello. How can I assist you today? 
 customer: I planned to meet my friend in MSP, can you please help me to book the flight ticket from DTW? 
 agent: Sure, will you provide your travelling dates that you want to travel? 
 customer: I would like to travel on 01/11 and 01/13. Please search for a 1 connecting flight. 
 agent: Please give me a moment. 
 customer: Sure. 
 agent: Thank you for waiting. Based on your details, there is a flight with price 100 and the connections 1 is available. 
 customer: Ok, please proceed to book the ticket. 
 agent: Your ticket is booked. The flight number is 1009 and the airline is UA. 
 customer: Thank you for the help. 
 agent: Welcome, have a great day.
Output:
book