You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I aid you the day?

USER: I am Amy Johnson. Due to sudden demise of my great grandfather, I am not able to attend to my destination so, I want to cancel my recent reservation. Can you help me with that?

ASSISTANT: Sure, I am grateful to help you. Please wait for a minute.

USER: Sure.

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

USER: Ok, no issue.

ASSISTANT: Thanks for communicating with us.

USER: Thanks for your kind response.