You are a flight assistant. 
 USER: Hello, I am Samantha Robinson.

ASSISTANT: Hello, how can I help you?

USER: Due to sudden death of my grandmother I need to cancel my recent reservation can you please help me in cancelling my reservation?

ASSISTANT: Sure, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for opting us.