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 Input:
customer: Hi.
agent: Hello, how may I aid you today?
customer: I need to cancel my ticket, can you help me?
agent: Sure, may I know your name?
customer: I am David Parker.
agent: Please wait for couple of minutes.
customer: Sure.
agent: We found a reservation on your name, shall I proceed to cancel?
customer: Yes, cancel it.
agent: Your reservation has been cancelled.
customer: Thank you for your help.
agent: Thank you for reaching us.

Ex Output:
cancel

Ex Input:
customer: Hi.
agent: Hello, how may I guide you?
customer: I am Patricia Brown here, I want to reserve my ticket from LAS to ATL, can you please help me?
agent: Sure, can I know your preferable dates?
customer: Sure, my planned dates of journey are from 11/26 to 11/28.
agent: I found a direct flight 1002 of Frontier airlines matches with your preferences, can I proceed?
customer: Ok, you can book it.
agent: Your ticket is booked.
customer: Thank you for your help in booking my ticket.
agent: Thank you, have a good day.

Ex Output:
book

Ex Input:
customer: Hello.
agent: Hello. How can I help you today?
customer: I am looking for a flight which will be travelling from Denver to EWR. Can you please help me in this?
agent: Sure, I am gleeful to help you with that. May I know your travelling dates, please?
customer: My travel dates are from Oct 24 to Oct 26.
agent: Can I know your connection limit?
customer: I am fine comfortable with minimum 1 connection limit.
agent: Do you have any class preference?
customer: No that's it, thank you.
agent: Is there any other requirements regarding on your journey?
customer: No.
agent: There is a connecting flight-1000 available in Jet Blue Airlines with a fare of 100. Shall I book it?
customer: Please proceed my booking with my name of David Thompson.
agent: David Thompson, your booking is done in economy class.
customer: Thank you so much.

Ex Output:
book