You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Actually my Hockey competition is postponed, so that I want change my existing reservation. Can you help me?

ASSISTANT: Sure, please let me know your name to proceed?

USER: Yes, I am Frank Gonzalez.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Ok, not an problem. Thank you for your information.

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