You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my reservation due to some emergency issues, so please aid me in this.

ASSISTANT: Sure, can I know your name?

USER: Sure, I am Emma Thompson.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: I have found your reservation on your name and cancelled it.

USER: Thank you.

ASSISTANT: You are welcome.