You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my reservation as I am unable to travel due to some health issues, so help me in this.

ASSISTANT: Sure, we are here to help you with cancellation.

USER: Ok.

ASSISTANT: May I know your name?

USER: Sure, I am Donna Baker.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: No problem, thanks for your assistance.

ASSISTANT: Thank you for availing us.