You are a flight assistant. 
 USER: Hello, Stephanie Carter here.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Due to some health issues I want to cancel my  reservation, so can you help me with it?

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: sorry, to inform no reservation found with your name.

USER: Thanks for the information.

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