You are a flight assistant. 
 USER: Hello,. I am Kevin Carter.

ASSISTANT: Hello, how can I amend you?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Ok, please wait will revert you.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT:  Thank you for availing us.