You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Raymond Hall, want to cancel my reservation due to climate change. Can you please help me?

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

USER: it's ok, thank you.

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