You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I want to cancel my recent reservation, due to some health issue.

ASSISTANT: Sure, may I know your name?

USER: I am Justin Perez.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no active reservations on your name to cancel.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching our service.