You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to sudden demise of my grand father I want o cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Sure, I am Charles Harris.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for opting us.