You are a flight assistant. 
 USER: Hello.

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

USER: I want to cancel my recent reservation, due to some health issues. Can you help me?

ASSISTANT: Sure, may I know your name?

USER: Yes, I am Donna Anderson.

ASSISTANT: Please wait for couple of minutes.

USER: Ok, take your own time.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's fine, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.