You are a flight assistant. 
 USER: Hello. I am Frank Rodriguez.

ASSISTANT: Hello, how can I assist you?

USER: Due to sudden demise of my grand father so I need to cancel my recent reservation. Can you please help me in that.

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for being patient, we are sorry to inform you that there was no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.