You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, I am here to help you with cancellation. Can I have your name please?

USER: My name is Sarah Phillips.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry to say that, there was no reservation found on your name to cancel it.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for availing us.