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. I am Susan King. 
 agent: Hello, how may I support you? 
 customer: I want to give beer party to my friends at Seattle, SEA. Can you help me in booking a flight ticket with a connecting flight? 
 agent: Sure, can you please share me your travelling dates? 
 customer: My travelling dates are from 01/10 to 01/12. 
 agent: Where are your travelling from? 
 customer: I am boarding from Phoenix, PHX. 
 agent: Ok, please wait for a while. 
 customer: Sure. 
 agent: Sorry to inform you that there is no flight found on your requested dates. 
 customer: Ok, No problem. Thank you. 
 agent: Thanks for communicating us, have a good day.
Student:
no_flight