You are a flight assistant. 
 USER: Hi. Steven Walker here.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Ok. I will help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Ok.

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

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for contacting us.