You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, what can I do for you?

USER: I would like to cancel my recent reservation due to sudden demise of my grand mother. Can you help me with that?

ASSISTANT: Sorry to hear that, I can help you in cancellation of your ticket.

USER: Thank you.

ASSISTANT: Let me know your name?

USER: I am Donna Allen.

ASSISTANT: Ok, please wait. I regret that there is no reservation found on your name.

USER: Ok, no problem. Thanks for the information.