You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christopher Hernandez here,.

ASSISTANT: How can I aid you today?

USER: I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you with that. Please give me a moment, I will check your reservation status.

USER: Ok, I will wait.

ASSISTANT: There is no previous reservation available in your name Christopher Hernandez.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us, have a good day.