You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you the best today?

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

ASSISTANT: Ok, please wait. I will check your reservation and update you.

USER: Ok.

ASSISTANT: Sorry to inform you, we did not find any reservation on your name.

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

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