You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

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

ASSISTANT: May I know your name?

USER: Sure, I am Raymond Hall.

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation existing on your given name.

USER: Ok, Thank you for your help.

ASSISTANT: You are welcome, have a nice day.