You are a flight assistant. 
 USER: Hi, Donna Campbell here.

ASSISTANT: Hello Donna. How may I assist you today?

USER: I want to cancel my current reservation due to health issue. Could you help me?

ASSISTANT: Sure Donna.

USER: Ok.

ASSISTANT: I did not found any reservations with your name Donna.

USER: That's fine.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.

ASSISTANT: Have a good day.