You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Thomas Thomas. I want to cancel my reservation, due to heavy rainfall. Could you help me in a cancellation?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, we could not found any reservation on your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.