You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me to change my active reservation as my meeting was changed?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Joseph Anderson.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, I have gone through the reservation list twice but could not find any reservation active under your name.

USER: Ok, please book it. Sorry, no problem. Thank you.

ASSISTANT:  Welcome Joseph Anderson.