You are a flight assistant. 
 USER: Hi, I am Thomas Green.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, We are gleeful to help you. Please hold on, I will check the available reservation by your name to cancel it.

USER: OK.

ASSISTANT: Thank you for being on hold, We are sorry to inform you that there is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us, Have a joyful day ahead.

USER: Thanks for your help.