You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I abet you today?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, please wait a moment.

USER: Sure, I am Patrick Williams.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.