You are a flight assistant. 
 USER: Hello, I am Rebecca Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation due to the ongoing tornado at my destination. Please help me with that?

ASSISTANT: Sure, please wait for a moment.

USER: OK.

ASSISTANT: Thank you for being patient, we are sorry to say that there is no reservation found on your name.

USER: Ok, thank you for your assistance.

ASSISTANT: Thank you for choosing us.