You are a flight assistant. 
 USER: Hello, Donna Anderson here.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I would like to cancel my recent reservation, Can you please help in doing this?

ASSISTANT: Sure, please let me check your reservation and let you know.

USER: Ok.

ASSISTANT: We are happy to inform you that we found reservation on your name. Would you like me to proceed for cancellation?

USER: Can you please cancel it?

ASSISTANT: Sure, your ticket has been cancelled.

USER: Ok, Thanks for your help.

ASSISTANT: Pleasure to serve you, thanks for your interest.