You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: May I know your name?

USER: Sure, my name is Andrew Hall.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Anyways, thank you for your appreciable service.