You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: My name is Virginia Williams. I want to cancel my recent reservation due to health issues.

ASSISTANT: Ok, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Not an issue, thanks for your service.

ASSISTANT: Thank you for choosing us.