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

customer: Hello,. 
 agent: Hello, how can I help you? 
 customer: Can you please help me in booking my flight ticket from DCA to EWR? 
 agent: Sure, may I know your travelling dates? 
 customer: My planned travel dates are April 01-03. 
 agent: Do you have any connection limit? 
 customer: I prefer to fly in connected flight. 
 agent: Any other preferences? 
 customer: I am looking for not to fly in low cost airlines. 
 agent: May I know your name? 
 customer: Stephanie Hernandez is my name. 
 agent: Sorry, there are no flights found with your details. 
 customer: Ok, no issues. Thank you for your service. 
 agent: Thank you.
no_flight

customer: Hi. 
 agent: Hello, how can I assist you? 
 customer: Rebecca Gonzalez here. Please help me out in booking the ticket from OAK to BOS. 
 agent: Sure, can you please provide your travel dates? 
 customer: My trip dates will be 07/28 to 07/30. 
 agent: Do you have any preferences? 
 customer: My depart time must be in the morning. 
 agent: Is there any class preference? 
 customer: No. 
 agent: Ok, please wait a minute. 
 customer: Ok. 
 agent: We found an American airline with flight 1019 having a fare 100 with stopover. Shall I proceed with booking? 
 customer: Please proceed. 
 agent: Your booking has been done. 
 customer: Thank you. 
 agent: Thank you.
book

customer: Hi. 
 agent: Hello, how can I be your helping hand today? 
 customer: I need to book a flight ticket to attend a birthday function at Charlotte CLT, Can you please help me for booking? 
 agent: Sure, may I know your source code? 
 customer: My source point is OAK. 
 agent: Could you share your depart and arrival dates? 
 customer: I would like to travel on 01/13 to return on 01/15. 
 agent: May I know your name? 
 customer: My name is Brenda Wright. 
 agent: We found a jetblue airline, flight number as 1004 with the fare of 200. 
 customer: Ok, proceed for booking. 
 agent: Your ticket has been reserved. 
 customer: Thanks for your information. 
 agent: Thank you.
book