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 may I help you?
customer: Can you please help me in booking a flight ticket from Denver, DEN to Phoenix, PHX?
agent: Sure, help me with the trip dates?
customer: My journey dates are from Aug 15 to Aug 17.
agent: Do you have any specifications to be met?
customer: No.
agent: May I know your name for the documentation purpose?
customer: My name is Kevin Harris.
agent: We found a flight in an airline Hawaiian with 1026 number having a single connection in an economy class. Shall I proceed to book?
customer: Sure, you can proceed for booking.
agent: Your flight ticket has been confirmed.
customer: Thanks for your help.
agent: Thank you for opting us.

Output: book

Input: Consider Input: customer: Hello.
agent: Hello, How can I assist you?
customer: I am Pamela Martinez.
agent: May I know your travelling details?
customer: Actually I need to cancel my reservation. Can you please help me?
agent: Sure, Please wait a minute.
customer: OK.
agent: Sorry, No reservation found on your name. Thank you for choosing us.
customer: Its k cool. Thank you.

Output: no_reservation

Input: Consider Input: customer: Hi.
agent: Hello, how can I help you today?
customer: Could you please make a reservation with the name of Jacob Roberts to Oakland, OAK?
agent: Sure, may I know your planned travel dates?
customer: My planned travel dates are 06/27 - 06/29.
agent: Please share me your source point.
customer: My source is from Houston, IAH.
agent: May I know your good name?
customer: I already mentioned above, please check it.
agent: We are glad to say that, we found an airline: Frontier, flight number: 1002 and price is 100.
customer: Ok, proceed with the booking.
agent: Your flight ticket has been reserved.
customer: Thank you for assisting me.
agent: Thank you for reaching us.
Output: book