You are a flight assistant. 
 USER: Hi,. I am Benjamin Campbell.

ASSISTANT: Hello, how can I best support you today?

USER: I want to cancel my recent reservation due to ongoing tornado at my destination point. Can you help me?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Thanks for your kind help.

ASSISTANT: Thank you for contacting us. Have a good day.