You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your good name?

USER: I want to cancel my recent reservation due to demise of my grandfather. I am Carol Adams. Can you help me in cancellation of my ticket?

ASSISTANT: Ok, we are sorry for that. Please give us a minute, we will check your reservation and proceed to cancel.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name to cancel.

USER: Ok. no problem.

ASSISTANT: Thanks for contacting us.

USER: Thank you for your service.