You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Due to sudden demise of my grand father, I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, may I know your good name?

USER: My name is Thomas Jackson.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No worries at all, thank you for your information.

ASSISTANT: Thank you for opting us.