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: Hi.
agent: Hello, how can I guide you today?
customer: Can you please help me in reserving a ticket to reach Houston with fare 1000?
agent: Sure, I am glad to help you.
customer: Thank you.
agent: Help me with your airport codes please?
customer: My airport codes are from LAS to IAH.
agent: On which dates you want me to book a flight ticket for you?
customer: Please book a ticket on 01/22 and need to return on 01/24.
agent: Thanks for your details, we found a connecting flight with flight number 1019 in Hawaiian airline and fare is of 100. Shall I reserve it?
customer: You can reserve it.
agent: May I know your good name please?
customer: I am Stephen Davis.
agent: Your ticket has been confirmed.
customer: Thank you for your extendable support.
agent: Thank you for choosing us.

Output: book

Input: Consider Input: customer: Hello.
agent: Hello, how may I serve you today?
customer: I planned to meet my friend in DFW, can you please help me to book a flight ticket from OAK?
agent: Sure, can I know your good name please?
customer: I am Eric Williams.
agent: When you are willing to travel?
customer: I prefer to travel on Apr 27 and Apr 29.
agent: Would you let us know if you have any other preferences?
customer: I prefer to travel in a connecting flight.
agent: We found a connecting flight 1005 in JetBlue airlines at the cost of 200 with economy class. Can I proceed for booking?
customer: Ok, please confirm my booking.
agent: Your booking is done.
customer: Thank you for your help.
agent: Thank you for choosing us.

Output: book

Input: Consider Input: customer: Hello.
agent: Hello, how can I help you today?
customer: I am Jennifer Roberts. I need to change my existing reservation, as my scheduled exam got postponed. Please help me in changing?
agent: Sure, we are here to help you. Please wait a moment.
customer: Ok.
agent: Sorry to inform, no reservation found with your name.
customer: Ok, no issues. Thank you for your information.
agent: Thanks for reaching us.
Output: no_reservation