You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to sudden demise of my Great grandfather, I want to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: Sure, I am Deborah Thompson.

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

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us.