You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I have to cancel my recent reservation due to an health issues, can you please help me?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check the reservation status.

USER: Sure, my name is Catherine Green here.

ASSISTANT: Sorry Catherine Green, there is no active reservation on your name in our database.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us.