You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Scott.

ASSISTANT: How can I assist you today?

USER: Can you help me for cancelling my recent reservation?

ASSISTANT: Sure, I will help you on that. Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found under your name. Welcome, have a great day.

USER: Oh! It's ok no problem, thank you for your services.