You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Michael Carter. Due to some entrepreneurship meeting, I am going to change my reservation. Can you please help me with that?

ASSISTANT: Sure, I am here to help you. Please let me check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Not an issue, anyhow thank you very much for your help.

ASSISTANT: You are welcome and thank you for contacting us.