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: Consider Input: customer: Hi.
agent: Hello,. How can I be at your service?
customer: I am Anthony Miller and help me to cancel the reservation, as my visa got rejected to go for a holidays vacation.
agent: Sure, we are here to assist you.
customer: Ok.
agent: Please be on hold for a second.
customer: Sure.
agent: Thanks for holding on, we found a reservation in your name and that has been cancelled successfully.
customer: Thank you.
agent: Thanks for approaching us, your amount will be credited to your account.

Output: cancel

Input: Consider Input: customer: Hello.
agent: Hello. How can I guide you?
customer: I am Carol Lewis. Due to my health problem I want to change my reservation, can you please help me to change my reservation?
agent: Sure, I will help you. Can you please give me a minute to check the ticket status?
customer: Sure, take your own time.
agent: Sorry Lewis, there is no reservation found with your name in our system database.
customer: That's fine. Thank you for your help.
agent: Thank you for choosing us.

Output: no_reservation

Input: Consider Input: customer: Hello.
agent: Hello. How can I help you?
customer: Could you help me in booking a flight ticket from IAD to JFK?
agent: Your travelling dates pleas?
customer: My departure day is Mar 07, return day is Mar 09.
agent: Do you have any specifications?
customer: I want a economy class flight ticket. And I want a flight with one connection.
agent: May I know your name please?
customer: My name is Emma Moore.
agent: I am sorry no flights found on your route.
customer: Not an issue, thank you.
agent: Thank you for choosing us.
Output: no_flight