You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Anthony Campbell.

ASSISTANT: How may I help you?

USER: Due to health issues, I would like cancel my reservation. Can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Anthony, no reservation has been found on your name in our database.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for choosing us.