You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Due to the sudden demise of my grandfather, I want to cancel my recent reservation. Please can you help me?

ASSISTANT: Sure, let me know your name for cancellation.

USER: I am Richard Thomas.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found on your name to cancel your reservation.

USER: No issue. Thanks for the quick response.

ASSISTANT: Thanks for availing us.