You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Anthony Parker. I want to cancel my previous reservation, can you please help me with that?

ASSISTANT: I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute, I will get back.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.