You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Dorothy Garcia, I want to cancel my recent reservation due to health issues.

ASSISTANT: Ok, please wait I will revert you in a moment.

USER: Sure.

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

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.