You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I am planning to cancel my recent reservation, due to health issue. Can you please help me out?

ASSISTANT: Sure, I will help you with that. May I know your good name please?

USER: Thank you. My name is Jeffrey Gonzalez.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data to cancel it.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for visiting us, we hope see you again.