You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my recent reservation due to cancel of my seminar. Could you please help me?

ASSISTANT: Sure, may I know your name?

USER: I am Debra Williams.

ASSISTANT: Wait a minute.

USER: Sure.

ASSISTANT: There was no reservation found on your name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.