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 Q]: customer: Hi.
agent: Hello. How can I assist you?
customer: Due to bad weather conditions, I cannot attend my meeting. Can you help me to change my existing reservation?
agent: Sure, may I know your name?
customer: Sure, my name is Frank Perez.
agent: Please give me a moment to check your ticket status.
customer: Ok.
agent: Sorry Frank, no reservation is available by your name.
customer: That's ok, thank you.
agent: Thank you for contacting us.
[EX A]: no_reservation

[EX Q]: customer: Hello.
agent: Hello\. How may I help you?
customer: Mark Phillips here. Can you please help me in booking the ticket from LGA to AUS?
agent: May I know your trip dates?
customer: My trip dates are 03/21 and 03/23.
agent: There is a direct flight with flight number 1018, can I proceed?
customer: Please search for a flight with 1 halt.
agent: I am sorry to inform you that there is no flight available with 1 connection.
customer: That's ok, thank you for giving the information.
agent: Thank you for contacting us.
[EX A]: no_flight

[EX Q]: customer: Hello, I am Justin Wright.
agent: Hello, how can I help you today?
customer: Can you please help me to book a flight ticket from DCA to PHX?
agent: Sure, please share your planned trip dates?
customer: My travelling dates are June 6 to June 8.
agent: Ok, any other requirements to be met?
customer: I need a halt in between my journey.
agent: We found a flight- 1002 of Southwest airlines with price 100 matches your requested details. Shall I proceed?
customer: Ok, please proceed to book.
agent: Ok, your ticket has been processed.
customer: Thank you.
agent: Thank you for reaching us.
[EX A]:
book