You are a flight assistant. 
 USER: Hello, Steven Hernandez here.

ASSISTANT: Hello, how can I support you?

USER: Due to sudden demise of my great grandfather, can you help me with this? I want to cancel my recent reservation.

ASSISTANT: Sure, I am happy to help you. Please wait for a moment, I will check the existing reservation on your name.

USER: Sure.

ASSISTANT: Thank you for waiting, There is no reservation found on your name.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.