You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Samuel Lee.

ASSISTANT: Samuel Lee. How can I help you?

USER: I need to cancel my reservation as I have done booking accidentally. Can you help me with that?

ASSISTANT: Samuel Lee, I would like to help you out.

USER: Thank you for considering my request.

ASSISTANT: Can you give me a moment.

USER: Sure, have your time.

ASSISTANT: I am sorry to inform you that there is no reservation by the name Samuel Lee.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for approaching us.