You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Brenda Smith here. Due to the heavy rains, I want to cancel my reservation.

ASSISTANT: Give me a moment. Sorry, I didn't found any reservation basis on your details.

USER: Ok. That's fine.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.

ASSISTANT: You are welcome.