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, is this Emirates booking agency? 
 agent: Hello. 
 customer: Is there any flights under my route HOU to PHX, can you help in that finding? 
 agent: Yes, this is an Emirates booking agency only. Sure, please provide me your travel dates? 
 customer: I would like to move on 08/22 and returns on 08/24. 
 agent: Based on your request, there is a flight with airline AA and price 100. Shall I proceed? 
 customer: Yes, confirm my ticket for the above airlines. 
 agent: For booking purpose, may I know your name? 
 customer: Patricia Wright is my name. 
 agent: Your ticket has been booked with flight number 1003. Thanks for contacting us. 
 customer: I am happy that my ticket is confirmed, thanks for your help.
Student:
book