You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In what way shall I oblige you now?

USER: I am Carol white want to cancel my reservation owing an emergency.

ASSISTANT: Ok.

USER:  can you help me in cancelling?

ASSISTANT: Sure, please hold on.

USER:  Ok.

ASSISTANT: I checked the reservation list, but there was no name in it to cancel.

USER:  Thank you for your help.

ASSISTANT: Thank you for approaching us.