You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I amend you today?

USER: I  am Kathleen Walker.

ASSISTANT: Ok.

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: 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, no problem. Thank you for helping me.

ASSISTANT: Thank you for reaching us.