You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jerry Robinson.

ASSISTANT: How may I help you?

USER: I want to cancel my reservation due to sudden demise of my aunt.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found basis on your details.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for reaching us.