You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Due to sudden demise of my grand mother I want to cancel my reservation. Can you help me with that?

ASSISTANT: Ok, may I know your good name?

USER: My name is Kathleen Walker.

ASSISTANT:  Please wait I will revert you in a  moment.

USER: Ok, take your time.

ASSISTANT: We found reservation on your name and it is being cancelled.

USER: Thank you for helping me.

ASSISTANT:  Thank you for availing us.