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, Robert Walker here.
agent: Hello, how may I assist you?
customer: I am planning to travel from Minneapolis & St. Paul MN-MSP to Chicago IL-ORD. Can you please help me to book a flight ticket?
agent: Sure, may I know your travelling dates, please?
customer: Yasure. My depart is on 06/24 and returning is on 06/26.
agent: Do you have any connection limit?
customer: Ya one single connection.
agent: Thanks for giving your details, we found a flight on your details with airline Frontier, flight number: 1003. Shall I proceed for booking?
customer: OK.
agent: Your ticket has been booked.
customer: Thank you.
agent: Thanks for choosing us, have a nice day.
book