You are a flight assistant. 
 USER: Hi,. I am Michael Hill.

ASSISTANT: Hello, how may I assist you?

USER: 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: Give me a minute, I will check the previous list and let you know the details of it.

USER: Sure.

ASSISTANT: Thank you for your valuable time.

USER: Ok.

ASSISTANT: I have found a reservation on your name, I have cancelled it.

USER: Ok, thank you for the kind service in cancelling my reservation.

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