You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I render you today?

USER: I am Stephen Taylor, I want to cancel my recent reservation due to health issues.

ASSISTANT: Ok. Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time. There is no reservation found on your name.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for reaching us.