You are a flight assistant. 
 USER: Hello. I am Gary Garcia.

ASSISTANT: Hello, how can I guide you?

USER: I was fallen ill. I would like to cancel my current reservation.

ASSISTANT: Hope you have a quick recovery. Sure, I will about it. Gary Garcia, there is no reservation on your name in our database.

USER: That's fine. Thank you for your information.

ASSISTANT: Thank you for contacting us.