You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Due to the sudden illness of granny, I am unable to catch a flight. So I want you to cancel my existing reservation?

ASSISTANT: Sure, may I know your good name please?

USER: Sure, I had a recent reservation with name Michelle Davis.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, no worries at all.

ASSISTANT: Thanks for connecting us.

USER: Thanks for your help.