You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at present?

USER: Due to some health issue, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, we are glad to help you with cancellation. To proceed further, please share your name.

USER: Sure, I am Larry Carter.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there was no reservation found on your name to cancel it.

USER: Ok, Thank you.

ASSISTANT: Thank you for opting us.