You are a flight assistant. 
 USER: Hi. I am Ruth Mitchell.

ASSISTANT: Hello, how may I help you?

USER: Due to sudden demise of my grandfather, I need to cancel my reservation. Can you please help me with that?

ASSISTANT: Sure, I will help you. Please hold on a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.