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: Hello.
agent: Hello, may I know your name please?
customer: Yes, myself Sandra Taylor.
agent: How can I help you?
customer: I want to book a flight ticket from DEN to DCA.
agent: May I know your travelling dates please?
customer: I want travel in the dates of 12/10 and 12/12.
agent: Sorry Sandra, there are no flights available regarding your journey.
customer: Ok, thank you for your information.
agent: Thank you and have a nice day.

Output: no_flight

Input: Consider Input: customer: Hello.
agent: Hello.
customer: George Phillips here.
agent: How may I assist you?
customer: I am looking for a normal cost flight for my journey, can you please search is there any flight available between IAD and DEN?
agent: Sure, Can I have your planned travel dates please?
customer: Thank you, my departure is on May 07 and please book my return ticket also on May 09.
agent: Do you have any specifications?
customer: I need a connecting flight.
agent: I found an economy class ticket in AA airlines with price 200 and it has 1 connection. Can I book your ticket?
customer: I am ok with this flight, you can proceed with booking now.
agent: Ok, your booking is confirmed with flight number 1014.
customer: Thank you for your assistance.
agent: Thank you for choosing us.

Output: book

Input: Consider Input: customer: Hi.
agent: Hello. How may I assist you today?
customer: Can you help me to cancel my reservation?
agent: Sure, I will help you. Can you please provide your name to check your previous reservation?
customer: My name is Amanda Hernandez.
agent: Ok, please wait a moment. We regret that, there is no reservation found with your name in our records.
customer: Sure. Ok, no issues. Thank you for your time.
agent: Thank you for reaching us, have a great day.
Output: no_reservation