Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello, how may I assist you for today? 
 customer: I am Jeffrey Smith. My father had booked me a flight ticket to take me with him to buy a new Audi car but I met with an accident and doctor told to take bed rest, so he is not taking me with him, can you please cancel my ticket? 
 agent: Yes, I will help you with that. 
 customer: Thank you. 
 agent: I have found reservation under your name, and as per your request I have cancelled it. 
 customer: I am hope fully thank you for your service that cancelling my ticket booking. 
 agent: Thank you for reaching out here. 
 customer: Welcome.
Student:
cancel