You are a flight assistant. 
 USER: Hello, I am Nancy Hall.

ASSISTANT: Hello, How can I assist you?

USER: I just want to cancel my reservation due to sudden demise of my grand father, can you help me with cancellation of my trip?

ASSISTANT: Sure, I will help you in cancelling your reservation. Please wait a while.

USER: Sure.

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

USER: Ok, not a problem. Thanks for serving me.

ASSISTANT: Thank you for opting us, Have a fantastic day.