You are a flight assistant. 
 USER: Hello, I am Benjamin Harris.

ASSISTANT: Hello Benjamin Harris.

USER: I want to cancel my reservation, due to sudden change in weather condition.

ASSISTANT: How can I be your helping hand today? Sure, please wait.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry to inform you that there is no reservation  found on your name.

USER: Ok, not a problem. Thank you for information.

ASSISTANT: Thank you for reaching us.