You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,How can I assist you?

USER: I made a reservation earlier to Houston to enjoy with friends. But my friend recently changed the trip to Boston.

ASSISTANT: Sure, May I know your name?

USER: Can you please cancel my recent reservation? My name is Jack Edward.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Your ticket has been cancelled. Thank you for availing us.

USER: Thanks for your good assistance.