You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, please share your name.

USER: I am Anthony Martin.

ASSISTANT: Please wait for a while, I will check your reservation and revert back.

USER: Sure.

ASSISTANT: I have found your reservation and it has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.