You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my reservation, because I do not like the service of the Delta airlines.

ASSISTANT: Sure, may I know your name please?

USER: My name is Emily Parker.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: As per your request, your ticket is cancelled.

USER: Thanks for your help.

ASSISTANT: You are welcome.