You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

USER: I am Amanda Walker.

ASSISTANT: Thanks for providing your name.

USER: I want to cancel my reservation, due to my health issues. Please help me in cancelling reservation.

ASSISTANT: Sure, I am here to help you in that? Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Thanks for your service.

ASSISTANT: Thanks for reaching us, have a great day.