You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please change my reservation?

ASSISTANT: May I know your name?

USER: Myself Thomas Mitchell.

ASSISTANT: Okay, please wait.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.