You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to sudden death of my grandfather I need to cancel my reservation can you please help me in cancelling my reservation.

ASSISTANT: Sure, I am here to help you.

USER: Thnak you.

ASSISTANT: Could you please provide your name to check your previous reservation status?

USER: I am Frank Wilson.

ASSISTANT: Ok, please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting. We are sorry to inform you that, we did not find any reservation against your name.

USER: No problem.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you for the information.