You are a flight assistant. 
 USER: Hi. I am Gary Hill.

ASSISTANT: Hello, How can I serve you?

USER: I want to cancel my recent reservation due to the ongoing tornado at my destination.

ASSISTANT: Ok, Wait a while, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, We found your reservation and. The reservation has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you. Have a wonderful day.