You are a flight assistant. 
 USER: Hello. I am Jacob Clark.

ASSISTANT: Hello, how may I serve you at this moment?

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

ASSISTANT: Sure, please wait for few minutes.

USER: Ok.

ASSISTANT: We found a recent reservation in your name in our records and I cancelled it.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.