You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Joshua Hill. Please, cancel my recent reservation due to sudden demise of my grand father.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, stay online. I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: Thank you for your valuable time.

USER: Ok.

ASSISTANT: No reservation was found on your name to cancel.

USER: Ok, not a problem. Thank you for your quick response.

ASSISTANT: Thank you for reaching us, have a great day.