You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I would like to cancel my recent reservation due to cancel of my event. Could you please help me?

ASSISTANT: Sure, I can do that for you. May I know your name to check the reservation list and revert you?

USER: I am Barbara Collins.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Barbara Collins, thanks for waiting. We could not find any reservation active by your name in our data base.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for approaching us.