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

Example Input: customer: Hello.
agent: Hello. May I know your name?
customer: Sure, I am Sandra Allen.
agent: How can I assist you today?
customer: Today, can you help me in booking a ticket to Atlanta?
agent: Sure, we are delighted to help you. When you are willing to travel to Atlanta?
customer: I am planning to meet my children and wife in Atlanta, as we planned to visit Georgia Aquarium on 03/21.
agent: Ok. May I know your recur date?
customer: We planned the trip for couple of dates, so I would like to go on 03/20 and I intend to return back on 03/22.
agent: Kindly share your airport codes? Do you want any lay bay in your journey?
customer: Sure, I will depart from New York, LGA and landing at Atlanta ATL.
agent: Ok.
customer: Yes, I am comfortable to travel if there is one stopover in between my journey.
agent: Please be online, I will check the availability and revert to you.
customer: Sure.
agent: Thanks for waiting,.
customer: Ok.
agent: Hawaiian airlines are providing service on your route with 1 connection. Can I proceed?
customer: Ok, please proceed for booking.
agent: Your booking is done with flight 1027.
customer: Thank you.
agent: Thank you for reaching us.
customer: Welcome.
Example Output: book

Example Input: customer: Hello.
agent: Hello, how can I guide you for today?
customer: Can you help me to book a business class flight ticket?
agent: Can you please share on what dates you are willing to travel?
customer: My travel dates are May 05 and May 07.
agent: Can you please provide your source and destination airport codes?
customer: My airport codes are DEN and MSP.
agent: Do you have any airline preferences?
customer: I am comfortable with any airlines.
agent: Are you looking for a connecting flight or direct flight?
customer: I am looking for connecting flight.
agent: Do you have any other requirements that you are looking for?
customer: No, thanks for asking.
agent: Can you please provide your name to proceed further?
customer: My name is Thomas Scott.
agent: Sorry, there are no flights available at your request.
customer: No problem, thank you for the information.
agent: Thank you for contacting us, have a nice day.
Example Output: no_flight

Example Input: customer: Hello.
agent: Hello, how can I assist you for the day?
customer: I want to cancel my recent reservation, can you please help me with this?
agent: Sure, I am here to help you.
customer: Thank you.
agent: May, I know your good name?
customer: I am Joshua Brown.
agent: We found reservation on your name. Shall I proceed to cancel?
customer: Ok, please cancel it.
agent: Your reservation has been cancelled.
customer: Thank you for your help.
agent: Thank you for reaching us.
Example Output:
cancel