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

[EX Q]: customer: Hello.
agent: Hello, how may I be at your service today?
customer: Can you please help me to book a flight from CLT to MCO?
agent: Sure, I will help you in booking the ticket. May I know your travelling dates please?
customer: I want to depart on Nov 21 and need to return on Nov 23.
agent: Do you have any other specifications?
customer: I need a connecting flight.
agent: Please help me with your name for booking.
customer: Thomas Carter here.
agent: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1002. Shall I proceed with this flight?
customer: Ok, please proceed.
agent: Your booking is done.
customer: Thank you.
agent: Most welcome.
[EX A]: book

[EX Q]: customer: Hi. I am Edward Walker.
agent: Hello, Please inform me, How may I assist you the day?
customer: Prepone plan came into a picture owing to announcement of birth of baby boy.So I need to cancel my recent reservation. Can you please help me in cancellation?
agent: Sure, I can help you in that cancellation.
customer: Thank you.
agent: Please allow me a moment to check for the previous reservation in our data base.
customer: Sure.
agent: We are sorry to inform that, there is no active reservation found on your name.
customer: Ok, no issues. Thank you.
agent: Thanks for choosing us. wish you a nice day.
[EX A]: no_reservation

[EX Q]: customer: Hello.
agent: Hello. How can I assist you?
customer: I am Sandra Williams, I need to book a flight ticket to ATL from DEN.
agent: Ok, I will book the flight for you. May I know the travel dates please to check the flight?
customer: Thank you, my travel dates are 05/04 and 05/07.
agent: There is a flight with the price 200 and the airlines is Delta.
customer: Yes, please proceed with the booking.
agent: Thank you for connecting our agency.
customer: Ok.
agent: The ticket is been booked and the flight is 1013.
customer: Thank you for booking my flight ticket.
[EX A]:
book