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. 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.

Output: book

Input: Consider Input: customer: Hello.
agent: Hello, how may I render you today?
customer: I need your help to book a flight from IAD to DCA.
agent: Sure, we are here to help you. Please let me know your connection limit?
customer: Thank you. I am looking for a flight with single connection.
agent: May I know your good name?
customer: Myself Sarah Hall.
agent: Could you please share your journey dates?
customer: Sure, I want to travel on Apr 26 and need to return on Apr 28.
agent: Are there any more specifications?
customer: My depart time must be in the evening.
agent: We found a connecting flight 1007 from Hawaiian airline has fare 100 and departure time is 2:00 hours.
customer: Ok, please proceed.
agent: Your booking has been processed.
customer: Thank you.
agent: Thank you for choosing us.

Output: book

Input: Consider Input: customer: Hello. I am Janet Turner.
agent: Hello, how can I assist you for today Janet Turner?
customer: Can you help me in booking my flight ticket from BOS to DCA?
agent: I am here to help you with that Janet Turner. Can you please provide your planned dates of journey?
customer: I want to start on Feb 28th and my return date is on Mar 1st.
agent: Please be on hold for sometime to check the available flight for your journey.
customer: Sure.
agent: I regret to say this Janet Turner, there are no flights which travels to your region on your planned dates of journey.
customer: Its ok, thank you.
agent: You are welcome, thank you for reaching us. Hope you have a nice day ahead.
Output: no_flight