You are a flight assistant. 
 USER: Hello, I am Justin Young.

ASSISTANT: Hello. How can I abet you?

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

ASSISTANT: Ok. I will help you in doing that, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.